€435.00
% Regular price: €552.00 (21.2% saved)
Bundle Alarm: Compact monitoring with immediate audible and visual alarm notification
This Didactum bundle combines the compact Monitoring System 50T with a temperature sensor, a door contact sensor, and an alarm siren with flashing light to create an immediately ready-to-use monitoring solution with direct on-site alarm notification. This detects both overheating and unauthorized access and signals them immediately in an emergency both audibly and visually — ideal for server rooms, technical cabinets, and smaller utility rooms without constant on-site personnel.
As a compact desktop control unit, the Monitoring System 50T forms the foundation of the bundle: it is connected to the network via Ethernet, can be configured entirely through the web browser, and requires no additional software. The temperature and door contact sensor are connected directly to the analog ports and are automatically detected thanks to AutoSense, while the alarm siren with flashing light is connected to one of the 50T relay outputs and warns immediately on site when an alarm event occurs.
As your requirements grow, this bundle grows with them: additional sensors can be added at any time via the remaining analog ports and the CAN bus of the 50T — without replacing the central unit.
This bundle includes:
Four coordinated Didactum products that together form a compact monitoring and alarm solution with direct on-site warning.
Didactum 50T
The compact monitoring and alarm unit that collects, evaluates, and automatically alarms on all sensors.
Temperature sensor
Precise temperature monitoring for early detection of overheating.
Door contact sensor
Monitors the opening and closing status of doors, windows, and server cabinets.
Alarm siren with flashing light
Combined audible and visual alarm directly on site in the event of an emergency.
Didactum Monitoring System 50T
The Didactum Monitoring System 50T is the central control unit of the bundle and a compact, cost-efficient monitoring solution for server rooms, IT racks, and technical systems. As a standalone desktop unit, it continuously records all connected sensors and reports anomalies in real time, long before they become an expensive failure or an unnoticed intrusion. With 4 analog ports, one CAN bus port, 2 potential-free inputs, and 2 relay outputs (12V / 0.25A), the 50T can also be used as an I/O controller for sirens, fans, or lighting. The system is equipped with Ethernet (100 Mbit/s) and can be seamlessly integrated into monitoring environments such as Zabbix, PRTG, or Nagios thanks to SNMP, Modbus TCP/IP, and Syslog.
Temperature sensor
The Didactum temperature sensor is used for precise temperature monitoring and measurement in the technical cabinet or server room. The sensor is connected to an analog port of the 50T via an RJ11 plug and is automatically detected. It can then be freely named in the web interface and assigned custom threshold values (Lower Critical, Lower Warning, Normal, Upper Warning, Upper Critical), so that an alarm is automatically triggered when a critical temperature is reached.
Door contact sensor
The Didactum door contact sensor monitors the opening or closing status of doors, windows, and server cabinets. It consists of a magnet and a sensor unit and is connected to a free analog port of the 50T. Multiple door contact sensors can be connected in series (up to 10 units, max. 150 m total length), allowing several access points to be monitored centrally. In the event of unauthorized access, the 50T can automatically trigger the alarm siren with flashing light and additionally send notifications.
Alarm siren with flashing light
The Didactum alarm siren with flashing light provides immediate audible and visual warning directly at the location of use. It is connected via the included connection cable to one of the 12V DC relay outputs (0.25A) of the 50T and can be flexibly linked with any sensor in the bundle: if the temperature sensor reports critical overheating or the door contact sensor reports unauthorized access, the 50T automatically activates the siren — with a loud audible alarm (108 dB) and red flashing light (2.5 Hz).
Note: The alarm siren is not connected to an analog sensor port, but to one of the relay outputs of the 50T. This keeps both analog ports available for the temperature and door contact sensor.
Comprehensive sensor integration for the bundle
The Monitoring System 50T supports up to 100 sensors, contacts, and relays simultaneously — 4 analog ports and 2 relay outputs are available directly on the device, and this number can be expanded via the CAN bus. In the bundle, 2 of the 4 analog ports are already occupied by the temperature and door contact sensor, and 1 of the 2 relay outputs is used by the alarm siren. The remaining 2 analog ports and the second relay output remain available for additional sensors and alarm devices.
Temperature
Already included in the bundle: protection against overheating in racks and server rooms.
Access
Already included in the bundle: detection of unauthorized access via the door contact sensor.
On-site alarm
Already included in the bundle: immediate audible and visual warning by the siren.
2 analog ports free
Room for additional sensors such as water, smoke, or humidity sensors.
Thanks to the two remaining analog ports, the second relay output, and the CAN bus port, the bundle can be expanded at any time with additional sensors or alarm devices.
Real-time monitoring and automated alarm notification
The Monitoring System 50T reacts immediately to any change in the status of the connected sensors. If a threshold is exceeded, the system automatically sends email notifications, SMS, or SNMP traps and additionally activates the connected alarm siren with flashing light, so that on-site personnel are warned immediately — even outside business hours or without constant monitoring of the web interface. Integration into monitoring software such as Zabbix, PRTG, or Nagios is easily possible thanks to common network protocols (HTTP, HTTPS, SMTP, FTP, SNMP, Syslog, DHCP).
Practical example: Outside business hours, the door contact sensor reports a door opening at the server cabinet. The 50T immediately triggers the alarm siren with flashing light, simultaneously sends an SMS to the responsible technician, and logs the event with a timestamp — so unauthorized access is noticed and documented immediately.
Web-based control & intelligent automation
The intuitive web interface allows easy management of all sensors as well as alarms and scenarios — directly from the moment the bundle is put into operation.
- Door opening detected → trigger alarm siren, send SMS to administrator
- Temperature > 30 °C → trigger alarm siren, email notification
- Temperature > 28 °C AND door contact open → switch relay, send SNMP trap
- Sensor value returns to normal → automatic alarm acknowledgement, deactivate siren
The Monitoring System 50T can also be used as an I/O controller for additional alarm devices, fans, or lighting — ideal for compact monitoring solutions without constant on-site personnel.
Full control
Manage temperature, access, and alarm siren together, turn them into actionable alarms, and configure integrations — all through an intuitive web-based interface.
- Monitor real-time status of temperature and door contact together
- Control the alarm siren manually or automatically via alarm rules
- Create automated actions based on defined conditions
- Send email, Telegram, HTTP request, SNMP, or other notifications
- Visualize trends and logs for better decisions
- Manage users, permissions, and access securely
Scalable, reliable, and future-proof
The Monitoring System 50T in the bundle is equipped with 100 Mbit/s Ethernet. The system supports up to 700 elements (sensors, contacts, triggers, timers, logic schemes, notifications). Two of the 4 analog ports and one of the 2 relay outputs of the central unit are already occupied in the bundle, while the remaining 2 analog ports, the second relay output, and the CAN bus port remain fully available. Using CAN expansion units and daisy chaining, the number of sensors can be expanded to over 256 if needed. Regular firmware updates ensure long-term use. Made in the EU — German support included.
Connect CAN devices
The Monitoring System 50T has a CAN bus port that allows up to 10 additional CAN devices to be connected in a chain — for example additional sensor expansion units (8 analog ports per unit) or dry-contact expansion units for potential-free contacts. With daisy chaining, a total cable length of up to 320 m can be achieved, so that even larger environments can be monitored centrally. An additional CAN power supply (12V/1A) is only required when the number of CAN devices in the chain exceeds 12 units.
Commissioning in just a few minutes
Setting up the bundle is quick and easy — without any additional software.
- Connect the Didactum 50T to your network via Ethernet cable
- Connect the included 12V DC power supply — the system starts automatically
- Open the device’s default IP address in the browser (
192.168.0.193, alternatively.101or.62) and go through the setup wizard - Connect the temperature and door contact sensor to an analog port each — automatic detection (AutoSense)
- Connect the alarm siren with flashing light to a free relay output of the 50T
- Name the sensors in the web interface, set threshold values, and link the siren with the desired alarm rules
- Optional: centrally manage advanced settings and alarm rules
What is included in the package
Please check the contents for completeness upon receipt and report any missing or damaged items to your supplier immediately.
- Monitoring unit Didactum 50T1 pc
- Plug-in power supply 12V / 1A (5.5 × 2.1 mm)1 pc
- RJ-45 Ethernet cable, 2 m, white1 pc
- OTG USB-C cable1 pc
- Connection terminal, 3-pin, 3.5 mm1 pc
- Connection terminal, 3-pin, 3.81 mm1 pc
- Self-adhesive rubber feet4 pcs
- Quick start guide1 pc
- Warranty card1 pc
- Temperature sensor incl. 2 m RJ11 cable & mounting material1 pc
- Door contact sensor incl. connection cable & mounting material1 pc
- Alarm siren with flashing light1 pc
Why this bundle is the right choice
Ready to use immediately
Temperature and door contact sensor as well as alarm siren already preconfigured in the bundle.
On-site alarm
Loud audible alarm (108 dB) and red flashing light directly at the location.
Compact & cost-efficient
Ideal as an entry-level solution for smaller server rooms and technical cabinets.
Access & climate
Overheating and unauthorized access monitored together.
2 analog ports free
Room for additional sensors such as water, smoke, or humidity sensors.
CAN bus for expansion
Up to 10 additional CAN devices can be retrofitted.
Web-based
Compatible with Zabbix, PRTG, Nagios, and Check_MK, without additional software.
Made in EU
German support included, regular firmware updates.
Practical application examples
- Server room and technical cabinet monitoring with immediate on-site alarm notification
- Access control for server cabinets, archives, and sensitive business areas
- Overheating protection with audible and visual warning when thresholds are exceeded
- Compact alarm solution for warehouses, technical rooms, or smaller production areas
- Addition to existing monitoring environments (Zabbix, PRTG, Nagios)
- Traceable event logging for audits and compliance
This bundle of Didactum 50T, temperature sensor, door contact sensor, and alarm siren with flashing light offers an immediately deployable, compact monitoring solution with direct audible and visual on-site alarm notification — ideal for companies that need to react quickly, even when no one is constantly watching the web interface.
More about the bundle
Device detail page & tutorial
Overview of the Didactum 50T, dimensions in detail, and all connections explained individually.
To the detail page →Firmware & updates
Current firmware versions as well as instructions for update and recovery.
To the firmware page →Live demo
Test the web interface of the Didactum monitoring system online without obligation.
To the demo →Frequently asked questions
What is included in this bundle?
The bundle contains the Didactum Monitoring System 50T as the central monitoring and alarm unit, a temperature sensor, a door contact sensor, and an alarm siren with flashing light. Together, they form a compact monitoring solution with immediate audible and visual on-site alarm notification.
How is the alarm siren connected?
The alarm siren with flashing light is connected via the included connection cable to one of the two 12V DC relay outputs (0.25A) of the 50T — not to an analog sensor port. This keeps both analog ports available for the temperature and door contact sensor.
Can the siren be linked with multiple sensors?
Yes. In the web interface, the alarm siren can be linked to any alarm rules — for example at critical temperature, when a door is opened, or with combinations of multiple conditions. This automatically activates the siren as soon as a defined threshold is exceeded.
How are the temperature and door contact sensors installed?
Both sensors are connected via RJ11/RJ12 cable to a free analog port of the 50T. Thanks to AutoSense, they are automatically detected and can then be named in the web interface and configured with individual threshold values.
Can I expand the bundle with additional sensors?
Yes. Since the bundle uses only 2 of the 4 analog ports and 1 of the 2 relay outputs of the 50T, 2 additional analog ports and one extra relay output are available for more sensors or alarm devices. Additional CAN devices or expansion units can also be connected via the CAN bus port.
Can the bundle be integrated into existing IT infrastructures?
Yes, the Didactum Monitoring System 50T is specifically designed for integration into professional IT environments. It supports SNMP v1/v2c/v3 and Modbus TCP/IP, can be integrated into common monitoring platforms such as Nagios, PRTG, or Zabbix, and includes a REST API for custom integrations.
Questions about the bundle?
Our support team in Germany advises you free of charge on selection, setup, and sensor technology.
Monitoring System 50T
Device Management:
- Device Management: Web, SNMP
- Sensor Access: Three-level login
Interface:
- LAN: Ethernet 100 Mbit
- Operating System: Linux v.6.2
- Interface: Any web browser
- Memory (RAM): 128 MB
- CPU Speed: 600 MHz
- Total CPU Cores: 2
- Clock: Built-in clock
- Timer: Built-in watchdog
Sensors and Logic:
- Max. Number of Sensors: 100 (physical sensors, dry contacts, relays)
- Max. Number of Elements: 700 (notifications, triggers, timers, logic, sensors, etc.)
Network / Protocol Support:
- LTE Gateway Mode: No
- LTE Access Mode: No
- Network Protocols: DHCP, HTTP, HTTPS, SNMP, SMTP, FTP, Syslog, TLS
- Modbus RTU: No
- Modbus TCP/IP: Yes
- VPN (Secure Data Transmission): No
Power Supply:
- Energy Efficiency (EU Energy Level): Class A
- Power Input (230V AC): No
- Power Input (24–48V DC): No
- Power Input (12V DC): Input
- Min. Power Consumption: 1 W
- Max. Power Consumption: 6 W
Inputs / Outputs:
- Analog Port: 4 built-in ports (6P6C for analog sensors)
- CAN Port: 1 port, max. 10 devices
- Dry Contact Inputs: 2
- Relay Outputs (240V / 10A): No
- Relay Outputs (12V / 0.25A): 2
Video Support:
- USB Cameras: 1
- IP Cameras: up to 4
Environmental Conditions:
- Operating Temperature: -10 to +70 °C
- Storage Temperature: -25 to +85 °C
- Operating Humidity: 0 to 90% (non-condensing)
Mechanics and Housing:
- Installation: Desktop
- Housing Material: Plastic
- Dimensions (L x W x H): 150 x 29 x 100 mm
- Weight: 0.5 kg
Didactum Siren
- Device Type: 12V DC sound and light alarm
- Rated Voltage: 12V DC, 1A
- Sound Pressure: 108 dB
- Sound Frequency: 3.8 kHz
- Flash Frequency: 2.5 Hz, red 150/min
- Output: Light and sound
- Operating Temperature: -50 °C to +105 °C
- Operating Humidity: 5% to 95% (non-condensing)
- Protection Class (IP): IP54
- Current Consumption: 250 mA
- Mounting: Wall mounting
- Housing Color: ABS plastic, red and white
Temperature Sensor
- Sensor Type: Analog sensor
- Measures: Temperature
- Accuracy: ±0.5 °C at room temperature
- Daisy Chain: No
- Cable Length: 2 m
- Power Consumption: 60 mW
- Operating Temperature: -10 °C to +80 °C
- Operating Humidity: 0 to 95% (non-condensing)
- Mounting Options: Desktop, indoor, rack, or wall mounting
- Maximum Distance to Unit: 100 m
- Output Connectors: RJ11 / 6P4C
Door Contact Sensor
- Sensor Type: Analog sensor
- Measures: Contact open/closed via magnet
- Accuracy: ±0.5 °C at room temperature
- Series Connection: Yes – all sensors in a chain are displayed as one element in the web interface
- Cable Length: RJ11 / RJ12 (6P4C), 2 m telephone cable included
- Power Consumption: 60 mW
- Operating Temperature: -10 °C to +80 °C
- Operating Humidity: 0 to 95%
- Inputs: RJ11 / RJ12 (6P4C)
- Outputs: RJ11 / RJ12 (6P4C)
- Output Terminals: RJ11 / 6P4C
- Mounting Options: Brackets, screws, and adhesive tape for installation in IT racks and enclosures included
- Max. Distance to Unit: 150 m
Additional compatible sensors
Current Measurement via Hall Effect Current Transformer Directly in the Monitoring System The Didactum current transformer transmits the current values measured by a Hall effect current transformer to a Didactum monitoring system. This analog plug-and-play converter is connected to any analog port (A1 to A8) of a Didactum monitoring system or expansion unit and works with Hall effect current transformers with a 0–5V output signal and 12V DC power supply. This article describes both available variants of the current transformer together: the AC variant for AC measurements and the DC variant for DC measurements. Both variants are identical in design, connection, and functionality, but differ in the type of external Hall effect current transformer they work with. The choice between AC and DC is made directly during the ordering process via the variant selection on this product page. Configuration Individually configurable: AC or DC The Didactum current transformer is already tailored during the ordering process to match the type of Hall effect current transformer already in use or planned. ⚠️ Please note: The correct variant must be actively selected above the shopping cart button under “Select variant”. The AC variant works only together with an AC Hall effect current transformer, while the DC variant works only together with a DC Hall effect current transformer. An incorrect combination will not provide correct measurement values. Select variant AC For monitoring AC current meters. Suitable for use with AC Hall effect current transformers for measuring alternating current. DC For monitoring DC current meters. Suitable for use with DC Hall effect current transformers for measuring direct current. Both variants are identical in connection, structure, and function; details can be found in the “Structure” section below. Structure Current transformer connections The current transformer has only a few, clearly separated connections for input, output, and the external current transformer. 1 Input: 3-pin terminal block 2.54 mm pitch. The external Hall effect current transformer is connected here using 3 wires (0–5V signal and 12V DC power supply). 2 Output: RJ11 6P4C Connects the current transformer via RJ11 cable to an analog port (A1 to A8) of the Didactum monitoring system or a VT408 expansion unit. The 12V DC power supply for the external Hall effect current transformer is provided by the Didactum monitoring system via the analog port and passed through by the current transformer to the current transformer sensor. A separate power supply for the current transformer sensor is not required. Required components Matching Hall effect current transformer required The Didactum current transformer cannot be operated on its own. It absolutely requires an external Hall effect current transformer with 0–5V output and 12V DC supply, which performs the actual current measurement on the line. HALL AC current transformer Open AC current transformer for alternating current, available for measurement ranges from 5 to 50 A. AC current transformer AC current transformer for higher alternating currents, available for measurement ranges from 50 to 500 A. DC current transformer DC current transformer for direct current, available for measurement ranges from 50 to 500 A. Alternatively, any other commercially available Hall effect current transformer with a suitable 0–5V output signal and 12V DC supply can also be used. Installation Install current transformer and sensor together The current transformer sensor and Didactum current transformer are installed together. 1 Mount the current transformer sensor Secure the Hall effect current transformer with screws and nuts. The line to be measured is guided through the aperture of the current transformer. 2 Connect to the monitoring system Connect one end of the RJ11 cable to a free analog port (A1 to A8) of the Didactum monitoring system and the other end to the RJ11 port of the current transformer. 3 Wire the current transformer sensor Connect the 3 wires to the Hall effect current transformer according to the wiring diagram using the 3-pin terminal block of the current transformer. ⚠️ Safety instructions: Observe the applicable regulations for installation in the respective country as well as the relevant accident prevention regulations, in addition to internal company work, operating, and safety rules. The specified technical limits, especially the permissible ambient temperature range, must not be exceeded under any circumstances. Also check the maximum insulation voltage of the current transformer sensor and the maximum permissible cable diameter of the line to be measured before installation. Web interface Full control over thresholds, trends, and automation The current transformer integrates seamlessly into the Didactum web interface and delivers precise measurement values as well as actionable insights. Individual thresholds (Lower Critical, Lower Warning, Normal, Upper Warning, Upper Critical) per measurement point Logic schemes for automated actions when limit values are exceeded, e.g. in case of overload Clear, individually configurable dashboard Graphical trend display and continuous logging of measurement values Notifications via email, SMS, SNMP trap, and other channels Use cases Areas of application for the current transformer Monitor circuits and outgoing feeders in electrical distribution boards to detect overloads Monitor power consumption of critical IT and facility equipment in the data center Measure generator load and detect over- or underload Monitor input and output current of UPS systems to assess backup performance Monitor motors, pumps, compressors, and production machines for load changes Record charging and discharging currents of battery banks and energy storage systems Check the power yield of solar inverters and other renewable energy systems Detect wear or defects early based on changed current consumption Scope of delivery What is included in the package Please check the contents upon receipt for completeness and report any missing or damaged parts to your supplier immediately. The external Hall effect current transformer (AC or DC) is not included in this scope of delivery and must be ordered separately. Didactum current transformer (AC or DC, depending on the ordering option)1 piece RJ11 cable 6P4C, 2 m1 piece 3-pin terminal block, 2.54 mm1 piece 3-pin terminal block, 3.81 mm1 piece 3-wire connection cable, 2 m1 piece Screw B4.2 x 16 mm1 piece Self-adhesive label1 piece Benefits at a glance Why this current transformer is the right choice High accuracy1% measurement accuracy in signal transmission from the current transformer sensor. AC and DC availableSelect the matching variant for alternating or direct current measurement. Plug and playAutomatic detection at the analog port, no manual setup required. No separate power supplyThe 12V supply for the current transformer sensor is provided directly via the analog port. CompactSmall form factor (80 × 19 × 20 mm), desktop or wall mounting. Long rangeUp to 50 m distance to the monitoring system or expansion unit. ExpandableAdd additional current transformers easily via the VT408 expansion unit. Made in EUDeveloped and manufactured in the European Union. FAQ Frequently asked questions What is the difference between the AC and DC variants? Both variants are identical in connection and function. The AC variant is intended for use with AC Hall effect current transformers for AC measurement, while the DC variant is intended for use with DC Hall effect current transformers for DC measurement. The correct variant is selected during ordering via the options menu. Can I use the AC variant with a DC current transformer sensor? No. The AC variant works only with AC Hall effect current transformers, and the DC variant works only with DC Hall effect current transformers. An incorrect combination will not provide correct measurement values. Is the external Hall effect current transformer included in the package? No. The Didactum current transformer absolutely requires an external Hall effect current transformer with a 0–5V output and 12V DC supply, which must be ordered separately. How is the current transformer connected? The current transformer is connected via RJ11 cable to any analog port (A1 to A8) of the Didactum monitoring system. The external Hall effect current transformer is connected via a 3-wire cable to the 3-pin terminal block of the current transformer. Does the current transformer sensor need its own power supply? No. The 12V DC supply for the current transformer sensor is provided by the Didactum monitoring system via the analog port and passed through by the current transformer. Can the current transformer be operated independently without a monitoring system? No. The current transformer itself provides no display or analysis and must always be used together with a Didactum or Vutlan monitoring system and a suitable external Hall effect current transformer. Questions about the Didactum current transformer? Our support team in Germany will advise you free of charge on selection, installation, and configuration. Contact form (+49) 2501 92 90 160
Compact Hall Effect Probe for Smaller AC Circuits The Didactum Small AC Current Transformer probe is a simple open-loop Hall effect AC current transducer (open-loop ammeter) in a particularly compact design that measures current on a conductor contactlessly without disconnecting it. The cable to be measured is passed through the opening of the ring-shaped transducer; the probe converts the measured AC current into a proportional 0–5 V DC output signal. This article refers to the AC-50 model with a rated current of 50 A and a measuring range of 0–50 A — ideal for individual circuits, outgoing feeders, and smaller to medium-sized loads. ⚠️ Important note: The Didactum Small AC Current Transformer probe measures the current on the conductor, but it cannot transmit the measurement signal to a monitoring system on its own. You also need the Didactum AC Current Transformer, part no. DI14030-AC, which acts as a transceiver, receives the probe’s 0–5 V signal, and forwards it via an analog port (A1…A8) to the Didactum monitoring system. Without the DI14030-AC, no display, analysis, or alarm notification of the measured values is possible. Design Current Probe Design The current probe consists of a compact ring-shaped transducer head with a pass-through opening and a 3-pin connection terminal. 1 Pass-through opening The cable to be measured is routed through the opening in the ring-shaped compact transducer core. The probe measures the current contactlessly via the magnetic field that is generated. 2 Mounting tabs Two mounting tabs on the housing used to secure the probe with screws and nuts. 3 3-pin connection terminal (pitch 3.81 mm) Three-pin terminal for wiring to the Didactum AC Current Transformer DI14030-AC. Pin assignment: + (+12 V DC supply), G (Ground), M (0–5 V measurement signal). ℹ️ Note on confusion: The AC-50 probe has a 3-pin terminal (+, G, M). The larger K6A model for higher currents uses a 4-pin terminal (G, M, G, +). When connecting, make sure the wires are assigned correctly according to the terminal labeling. Installation Mounting and Connection The current probe and the Didactum AC Current Transformer (DI14030-AC) are installed together. 1 Mount the probe Secure the current probe in a suitable location with screws and nuts. Route the cable to be measured through the probe’s pass-through opening. 2 Wiring to current transformer DI14030-AC Connect the 3 wires of the terminal (+, G, M) to the 3-pin input terminal of the Didactum AC Current Transformer (DI14030-AC) according to the wiring assignment. 3 Connect to the monitoring system Connect the Didactum AC Current Transformer (DI14030-AC) to a free analog port (A1…A8) of the Didactum monitoring system or an 8-port sensor expansion unit using an RJ11 cable. ⚠️ Safety instructions: The regulations applicable to installation in the respective country and the relevant accident prevention regulations must be observed, as well as internal company work, operating, and safety regulations. The specified technical limits, especially insulation voltage and ambient temperature range, must under no circumstances be exceeded. Before installation, check the maximum permissible conductor diameter and the maximum insulation voltage of the probe. Web interface Full Control over Thresholds, Trends, and Automation Via the Didactum AC Current Transformer (DI14030-AC), the probe integrates seamlessly into the Didactum web interface. Individual thresholds (Lower Critical, Lower Warning, Normal, Upper Warning, Upper Critical) for each measurement point Logic schemes for automated actions when limit values are exceeded, e.g. in case of overload Clear, individually configurable dashboard Graphical trend display and continuous logging of measured values Notifications via email, SMS, SNMP trap, and other channels Application examples Use Cases for the Current Probe Monitoring circuits and feeders in electrical distribution panels to detect overloads Monitoring motors, pumps, compressors, and production machines for load changes Automatic alarm notifications when defined current limits are exceeded to prevent equipment damage and power outages Monitoring the power consumption of smaller IT and facility devices in the data center Early detection of wear or defects based on changes in current consumption Complementing existing monitoring environments (Zabbix, PRTG, Nagios) Scope of delivery What Is Included Please check the delivery for completeness upon receipt and report any missing or damaged parts to your supplier immediately. The Didactum AC Current Transformer DI14030-AC is not part of this scope of delivery and must be ordered separately. Didactum Small AC Current Transformer probe AC-50 (50 A)1 piece Self-adhesive label1 piece Screw L18.5 M42 pieces Bolt L14 M42 pieces Nut M3.52 pieces Key benefits Why This Current Probe Is the Right Choice 50 A rated currentMeasuring range 0–50 A for circuits and smaller to medium-sized loads. Compact designEspecially space-saving, ideal for tight control cabinets and distribution panels. Contactless measurementCurrent detection without disconnecting the conductor. High accuracy0.5% accuracy and linearity error. Easy installationMounting via two tabs with screws and nuts. Robust insulationInsulation voltage AC 2.5 kV 50 Hz 1 min for safe operation. Wide operating rangeDesigned for ambient temperatures from -10 °C to +70 °C. Made in EUDeveloped and manufactured in the European Union. FAQ Frequently Asked Questions For which current range is this model suitable? This model (AC-50) has a rated current of 50 A and covers a measuring range of 0–60 Aac. Make sure the maximum expected operating current of the conductor being monitored stays safely within this range. How does this probe differ from the larger K6A probe? The AC-50 probe is more compact and uses a 3-pin terminal (+, G, M), while the K6A probe for higher currents uses a 4-pin terminal (G, M, G, +). Both probes require the Didactum current transformer (AC version) as the transceiver to the monitoring system. Can the current probe be connected directly to the monitoring system? No. The probe outputs a 0–5 V analog signal and absolutely requires the Didactum AC Current Transformer (DI14030-AC) as a transceiver, which transfers this signal to an analog port of the monitoring system. Is the DI14030-AC included in the scope of delivery? No. The Didactum AC Current Transformer DI14030-AC is a separate product and must be ordered additionally if not already available. Does the conductor have to be cut open for installation? No. The current probe measures contactlessly via the magnetic field of the conductor routed through the pass-through opening. Cutting the conductor is not necessary for the measurement itself. Can multiple current probes be used at the same time? Yes. Each circuit to be monitored requires its own AC-50 current probe with its own Didactum AC Current Transformer (DI14030-AC) connected to a free analog port. If the available ports are not sufficient, the number can be expanded using a VT408 expansion unit. Questions about the Didactum Small AC Current Transformer probe? Our support team in Germany will advise you free of charge on selection, installation, and configuration. Contact form (+49) 2501 92 90 160
Precise Hall-Effect Current Transformer for AC Measurement The Didactum AC current transformer is a simple, open-loop Hall-effect AC current transformer (open-loop ammeter) that measures current on a conductor contactlessly without disconnecting it. The conductor to be measured is passed through the opening of the ring-shaped transformer; the transformer converts the measured AC current into a proportional 0–5V DC output signal. This article refers to model AC-100 with a rated current of 100A and a measuring range of 0–100 A — ideal for monitoring individual circuits, feeders, and medium loads. ⚠️ Important note: Although the Didactum AC current transformer measures the current on the conductor, it cannot transmit the measuring signal to a monitoring system on its own. The Didactum current transformer in the AC version, item no. DI14030-AC is additionally required; as a transceiver, it receives the 0–5V signal from the current transformer and forwards it via an analog port (A1…A8) to the Didactum monitoring system. Without the DI14030-AC, no display, evaluation, or alarming of the measured values is possible. Design Current Transformer Design The current transformer consists of a ring-shaped transformer head with a pass-through opening and a 4-pin connection terminal. 1 Pass-through opening (Ø 21 mm) The conductor to be measured is passed through this opening in the ring-shaped, toroidal transformer core. The transformer measures current contactlessly via the magnetic field that is generated. 2 Mounting tabs Two fixing tabs on the housing, used to secure the transformer with screws and nuts. 3 4-pin connection terminal (3.81 mm pitch) Four-pin terminal for wiring to the Didactum current transformer DI14030-AC. Pin assignment: G (Ground), M (0–5V measuring signal), G (Ground), + (+12V DC supply). Installation Mounting and Connection The current transformer and the Didactum current transformer (DI14030-AC) are installed together. 1 Mount the transformer Secure the current transformer in a suitable location using screws and nuts. Route the conductor to be measured through the transformer's pass-through opening. 2 Wiring to current transformer DI14030-AC Connect the 4 wires of the terminal (G, M, G, +) to the 3-pin input terminal of the Didactum current transformer (DI14030-AC, AC version) according to the wiring diagram. 3 Connect to the monitoring system Connect the Didactum current transformer (DI14030-AC) via RJ11 cable to a free analog port (A1…A8) of the Didactum monitoring system or an 8-port sensor expansion unit. ⚠️ Safety instructions: Applicable regulations for installation in the respective country and the relevant accident prevention regulations must be observed, as well as internal operational, working, and safety rules. The specified technical limits, in particular insulation voltage, pass-through diameter, and ambient temperature range, must under no circumstances be exceeded. Before installation, check the maximum permissible conductor diameter as well as the maximum insulation voltage of the transformer. Web interface Full Control of Thresholds, Trends, and Automation Via the Didactum current transformer (DI14030-AC), the current transformer integrates seamlessly into the Didactum web interface. Individual thresholds (Lower Critical, Lower Warning, Normal, Upper Warning, Upper Critical) for each measuring point Logic schemes for automated actions when thresholds are exceeded, e.g. in case of overload Clear, individually configurable dashboard Graphical trend display and continuous logging of measured values Notifications via email, SMS, SNMP trap, and other channels Applications Current Transformer Use Cases Monitor circuits and feeders in electrical distribution boards to detect overloads. Monitor the power consumption of critical IT and facility equipment in the data center. Monitor motors, pumps, compressors, and production machines for load changes. Measure generator load and detect over- or underload. Monitor input and output current of UPS systems to assess backup performance. Check the power output of solar inverters and other renewable energy systems. Automated alarming when defined current limits are exceeded. Early detection of wear or defects based on changes in current draw. Scope of delivery What Is Included Please check the scope of delivery for completeness upon receipt and report any missing or damaged parts to your supplier immediately. The Didactum current transformer DI14030-AC is not included in this scope of delivery and must be ordered separately. Didactum AC current transformer AC-100 (100A)1 pc Self-adhesive label1 pc Screw L18.5 M42 pcs Bolt L14 M42 pcs Nut M3.52 pcs Key benefits Why This Current Transformer Is the Right```xml Precision Hall-Effect Current Transducer for AC Measurement The Didactum AC current transducer is a simple, open-loop Hall-effect AC current transducer (open-loop ammeter) that measures the current on a line contactlessly without opening the circuit. The cable to be measured is passed through the opening of the ring-shaped transducer; the transducer converts the measured AC current into a proportional 0–5V DC output signal. This article refers to the AC-100 model with a rated current of 100A and a measurement range of 0–100 A — ideal for monitoring individual circuits, feeders, and medium loads. ⚠️ Important note: Although the Didactum AC current transducer measures the current on the line, it cannot transmit the measurement signal to a monitoring system by itself. The additionally required component is the Didactum current transducer in the AC version, part no. DI14030-AC, which acts as a transceiver, receives the 0–5V signal from the current transducer, and forwards it to the Didactum monitoring system via an analog port (A1…A8). Without the DI14030-AC, no display, analysis, or alarm notification of the measured values is possible. Design Design of the Current Transducer The current transducer consists of a ring-shaped transducer head with a passage opening and a 4-pin connection terminal. 1 Passage opening (Ø 21 mm) The cable to be measured is routed through this opening in the ring-shaped toroidal transducer core. The transducer measures the current contactlessly via the magnetic field generated. 2 Mounting tabs Two mounting tabs on the housing used to secure the transducer with screws and nuts. 3 4-pin connection terminal (3.81 mm pitch) Four-pole terminal block for wiring to the Didactum current transducer DI14030-AC. Pin assignment: G (Ground), M (0–5V measurement signal), G (Ground), + (+12V DC supply). Installation Mounting and Connection The current transducer and the Didactum current transducer (DI14030-AC) are installed together. 1 Mount the transducer Secure the current transducer in a suitable location using screws and nuts. Route the cable to be measured through the transducer's passage opening. 2 Wiring to the DI14030-AC current transducer Connect the 4 wires of the connection terminal (G, M, G, +) to the 3-pin input terminal of the Didactum current transducer (DI14030-AC, AC version) according to the wiring assignment. 3 Connect to the monitoring system Connect the Didactum current transducer (DI14030-AC) via RJ11 cable to a free analog port (A1…A8) of the Didactum monitoring system or an 8-port sensor expansion unit. ⚠️ Safety instructions: Comply with the applicable installation regulations in the respective country as well as the relevant accident prevention regulations, together with internal company work, operating, and safety rules. The specified technical limits, especially insulation voltage, passage diameter, and ambient temperature range, must under no circumstances be exceeded. Before installation, check the maximum permissible cable diameter and the maximum insulation voltage of the transducer. Web interface Full Control of Thresholds, Trends, and Automation Via the Didactum current transducer (DI14030-AC), the current transducer integrates seamlessly into the Didactum web interface. Individual thresholds (Lower Critical, Lower Warning, Normal, Upper Warning, Upper Critical) per measurement point Logic schemes for automated actions when limit values are exceeded, e.g. in case of overload Clear, individually configurable dashboard Graphical trend display and continuous logging of measured values Notifications via email, SMS, SNMP trap, and other channels Applications Use Cases for the Current Transducer Monitor circuits and feeders in electrical distribution panels to detect overloads Monitor the power consumption of critical IT and facility equipment in data centers Monitor motors, pumps, compressors, and production machines for load changes Measure generator load and detect overloading or underloading Monitor the input and output current of UPS systems to assess backup performance Check the output of solar inverters and other renewable energy systems Automatic alarm notification when defined current limits are exceeded Early detection of wear or faults based on changes in current draw Scope of delivery What Is Included in the Package Please check the contents of the package upon receipt for completeness and report any missing or damaged parts to your supplier immediately. The Didactum current transducer DI14030-AC is not included in this scope of delivery and must be ordered separately. Didactum AC current transducer AC-100 (100A)1 piece Self-adhesive label1 piece Screw L18.5 M42 pieces Bolt L14 M42 pieces Nut M3.52 pieces Key benefits Why This Current Transducer Is the Right Choice 100A rated currentMeasurement range 0–100 A for circuits and medium loads. Contactless measurementCurrent detection without opening the cable. High accuracy≤ ±1.0 % accuracy and linearity error. Easy installationMounting via two tabs with screws and nuts. Robust insulationInsulation voltage AC 2.5 kV 50 Hz 1 min for safe operation. Wide operating rangeDesigned for ambient temperatures from -10 °C to +70 °C. Standardized output0–5V DC signal, compatible with the Didactum current transducer DI14030-AC. Made in the EUDeveloped and manufactured in the European Union. FAQ Frequently Asked Questions Which current range is this model suitable for? This model (AC-100) has a rated current of 100A and covers a measurement range of 0–100 A. Make sure the maximum expected operating current of the monitored cable stays safely within this range. Can the current transducer be connected directly to the monitoring system? No. The current transducer provides a 0–5V analog signal and requires the Didactum current transducer in the AC version (DI14030-AC) as a transceiver to pass this signal to an analog port of the monitoring system. Is DI14030-AC included in the scope of delivery? No. The Didactum current transducer DI14030-AC is a separate product and must be ordered additionally if it is not already available. Does the cable need to be cut for installation? No. The current transducer measures contactlessly via the magnetic field of the cable routed through the passage opening. Cutting the cable is not required for measurement. Can multiple current transducers be used at the same time? Yes. Each monitored circuit requires its own AC-100 current transducer with its own Didactum current transducer (DI14030-AC) on a free analog port. If the available ports are not sufficient, the number can be expanded using an 8-port extension unit. Is the transducer also suitable for DC measurements? No. The Didactum AC current transducer is designed exclusively for alternating current (AC). For DC measurements, a separate product is available that is combined with the DC version of the Didactum current transducer. Questions about the Didactum AC current transducer? Our support team in Germany will advise you free of charge on selection, installation, and configuration. Contact form (+49) 2501 92 90 160
Precise Probe for DC Current Measurement The Didactum DC current transformer probe is a simple, open-loop Hall-effect DC current transducer that measures direct current on a cable contactlessly, without interrupting it. The cable to be measured is routed through the opening of the ring-shaped transducer; the probe converts the measured DC current into a proportional 0–5V DC output signal. This article refers to the DC-100 model with a rated current of 100A and a measurement range of 0–100 A — ideal for monitoring battery systems, DC busbars, and DC distribution lines. ⚠️ Important note: The Didactum DC current transformer probe measures the current on the cable, but cannot transmit the measured signal to a monitoring system on its own. The Didactum current transducer in the DC version, item no. DI14030-DC, is additionally required as a transceiver. It receives the probe’s 0–5V signal and forwards it via an analog port (A1…A8) to the Didactum monitoring system. Without the DI14030-DC, no display, evaluation, or alarm notification of the measured values is possible. Design Design of the Current Measuring Probe The current measuring probe consists of a ring-shaped transducer head with a pass-through opening and a 4-pin terminal block. 1 Pass-through opening (Ø 21 mm) The DC cable to be measured is routed through this opening in the ring-shaped toroidal transducer core. The probe measures the current contactlessly via the magnetic field generated. 2 Mounting tabs Two mounting tabs on the housing used to secure the probe with screws and nuts. 3 4-pin terminal block (3.81 mm pitch) Four-wire terminal for connection to the Didactum current transducer DI14030-DC. Pin assignment: G (Ground), M (0–5V measurement signal), G (Ground), + (+12V DC supply). Installation Mounting and Connection The current measuring probe and the Didactum current transducer (DI14030-DC) are installed together. 1 Mount the probe Secure the current measuring probe in a suitable location using screws and nuts. Route the DC cable to be measured through the probe’s pass-through opening. 2 Wiring to current transducer DI14030-DC Connect the 4 wires of the terminal block (G, M, G, +) to the 3-pin input terminal of the Didactum current transducer (DI14030-DC, DC version) according to the pin assignment. 3 Connect to the monitoring system Connect the Didactum current transducer (DI14030-DC) via RJ11 cable to a free analog port (A1…A8) of the Didactum monitoring system or an 8-port sensor expansion unit. ⚠️ Safety instructions: Comply with the applicable regulations for installation in the respective country as well as the relevant accident prevention regulations, and also with internal operating, work, and safety rules. The specified technical limits, in particular insulation voltage, pass-through diameter, and ambient temperature range, must under no circumstances be exceeded. Before installation, check the maximum permissible cable diameter and the maximum insulation voltage of the probe. Web interface Full Control over Thresholds, Trends, and Automation Via the Didactum current transducer (DI14030-DC), the probe integrates seamlessly into the Didactum web interface. Individual thresholds (Lower Critical, Lower Warning, Normal, Upper Warning, Upper Critical) for each measuring point Logic schemes for automated actions when limits are exceeded, e.g. in case of overload or deep discharge Clear, individually configurable dashboard Graphical trend display and continuous logging of measured values Notifications by email, SMS, SNMP trap, and additional channels Applications Use Cases for the Current Measuring Probe Monitoring load current on DC Hall probes for battery strings, DC busbars, and distribution lines for remote power consumption monitoring Detecting overload and assessing the condition of DC circuits Monitoring charging and discharging currents in battery banks, UPS systems, and energy storage systems Detecting anomalous current flow to optimize battery lifespan Monitoring telecom rectifiers, DC motors, solar charge controllers, EV charging stations, and industrial DC loads Detecting operating changes, unexpected load fluctuations, and fault conditions in DC systems Scope of delivery What Is Included Please check the contents upon receipt for completeness and report any missing or damaged parts to your supplier immediately. The Didactum current transducer DI14030-DC is not included in this scope of delivery and must be ordered separately. Didactum DC current transformer probe DC-100 (100A)1 piece Self-adhesive label1 piece Screw L18.5 M42 pieces Bolt L14 M42 pieces Nut M3.52 pieces Key benefits Why This Current Measuring Probe Is the Right Choice 100A rated currentMeasurement range 0–100 A for battery systems, DC busbars, and distribution lines. Contactless measurementDetects DC current without disconnecting the cable. High accuracyAccuracy and linearity error of ≤ ±1.0%. Fast response timeResponse time of ≤ 20 ms for timely readings. Easy installationMounted using two tabs with screws and nuts. Robust insulationInsulation voltage AC 2.5 kV 50 Hz 1 min for safe operation. Wide operating rangeDesigned for ambient temperatures from -10 °C to +70 °C. Made in EUDeveloped and manufactured in the European Union. FAQ Frequently Asked Questions What current range is this model suitable for? This model (DC-100) has a rated current of 100A and covers a measurement range of 0–100 A. Make sure the maximum expected operating current of the monitored cable stays safely within this range. Can the current measuring probe be connected directly to the monitoring system? No. The probe provides a 0–5V analog signal and requires the Didactum current transducer in the DC version (DI14030-DC) as a transceiver to transmit this signal to an analog port of the monitoring system. Is DI14030-DC included in the package? No. The Didactum current transducer DI14030-DC is a separate product and must be ordered additionally unless already available. Does the cable need to be cut for installation? No. The current measuring probe measures contactlessly through the magnetic field of the cable routed through the pass-through opening. Cutting the cable is not required for measurement. Can multiple current measuring probes be used at the same time? Yes. Each DC circuit to be monitored requires its own DC-100 current measuring probe with its own Didactum current transducer (DI14030-DC) on a free analog port. If the available ports are not sufficient, the number can be increased using an 8-port sensor expansion unit. Is the probe also suitable for AC measurements? No. The Didactum DC current transformer probe is designed exclusively for direct current (DC). For AC measurements, a separate product is available that is combined with the AC version of the Didactum current transducer. Questions about the Didactum DC current transformer probe? Our support team in Germany will advise you free of charge on selection, installation, and configuration. Contact form (+49) 2501 92 90 160
Expansion via CAN sensors
Compatible expansion units
Usable video camera
Manufacturer information:
Didactum® Security GmbH
Im Mühlenfeld 4
48163 Münster
Deutschland
Fon:
(+49) 250 19 71 63 54 / (+49) 171 33 11 577
Email: info@didactum-security.de