Monitoring System 100T Bundle Rack Monitoring

Rack Monitoring Bundle: Climate and Access Monitoring Including Alarming and Rack Mounting

This Didactum bundle combines the Monitoring System 100T with temperature, humidity, and door contact sensors, an alarm siren with strobe light, and a matching 19" rack mount kit to form a complete rack monitoring solution. The bundle covers both climate monitoring and physical access security for a rack — including immediate visual and audible alarming in case of an incident.

The Monitoring System 100T forms the central control and alarming unit: it is integrated into the network via Ethernet, is fully configurable through a web browser, and requires no additional software. The temperature, humidity, and door contact sensors are connected directly to the analog ports, and the alarm siren is connected to the relay output — all components are automatically detected or immediately ready to control. The rack mount kit secures the central unit neatly and space-efficiently on 1 rack unit in the 19" server rack.

As your needs grow, so does this bundle: one analog port and the entire CAN bus port of the 100T remain free, so additional sensors or expansion units can be added at any time — without having to replace the central unit.

This bundle includes:

Six coordinated Didactum products that together form a complete rack monitoring solution with climate, access, and alarm functionality.

Monitoring System 100T

The Monitoring System 100T is the central control unit of the bundle and the latest generation of Didactum's high-end monitoring systems, developed and manufactured in the European Union. It operates fully independently via an integrated web server, requires no additional software installation, and — thanks to its hardened Linux operating system and built-in watchdog — is designed for permanent 24/7 operation in critical environments such as server rooms, production facilities, or data centers. Four analog ports, a CAN bus port, and relay outputs allow sensors to be automatically detected and alarm devices such as sirens to be directly controlled, while integration into SNMP-, Modbus TCP/IP-, or Syslog-based monitoring landscapes such as Zabbix, PRTG, or Nagios works without additional effort. With 10/100/1000 Mbit/s Ethernet, an optional LTE modem, and either an OSDPv2 or Modbus/RTU expansion module, the 100T can be precisely tailored to the given infrastructure.

Temperature Sensor

The temperature sensor included in the bundle is used to precisely monitor and measure the internal temperature of the rack and is connected directly to an analog port of the Monitoring System 100T via an RJ11 connector. The device automatically detects the sensor, displays it in the web interface, and allows individual configuration of thresholds and notifications there. The sensor is wired, with a 2-meter cable included, and can be placed up to 100 meters away from the central unit if needed, making it suitable for racks in adjacent rooms as well. As the foundation of climate monitoring, it delivers reliable temperature data from the outset and forms the basis for automated cooling and alarm scenarios.

Humidity Sensor

The humidity sensor in the bundle complements the temperature sensor by measuring relative humidity and is likewise connected directly to the Monitoring System 100T via an analog port. With compact dimensions of just 60 × 18 × 18 mm and a power consumption of only 60 mW, it is space-saving and energy-efficient, allowing it to be mounted unobtrusively in the rack. Continuous humidity monitoring helps detect condensation risks early and ensures optimal conditions for sensitive IT equipment. Thanks to a connection cable that can optionally be extended up to 50 meters, the sensor can be flexibly placed wherever humidity actually needs to be monitored.

Door Contact Sensor

The door contact sensor included in the bundle handles access monitoring for the rack and consists of a magnet and a sensor unit that together reliably detect whether the rack door is open or closed. It is connected to another analog port of the Monitoring System 100T and can be daisy-chained with up to 10 additional sensors if needed, allowing multiple doors or cabinets to be monitored simultaneously. Thanks to its compact design and the mounting bracket included in the scope of delivery, it can be easily attached directly to the rack frame. Every unauthorized opening is logged immediately and can automatically trigger a notification or the bundle's alarm siren.

Alarm Siren with Strobe Light

The alarm siren with strobe light provides immediate audible and visual alarming directly at the rack in the bundle, as soon as one of the sensors reports a critical condition — such as an unauthorized open door, excessive temperature, or excessive humidity. It is connected via the included 3-meter cable directly to a 12V DC relay output of the Monitoring System 100T and is automatically activated in the event of an alarm. With a sound pressure of 108 dB and a red strobe light flashing at 2.5 Hz, it reliably draws attention even in larger or noisy environments. Thanks to IP54 protection rating and a robust ABS housing, it is also designed for permanent use in technical rooms.

Rack Mount Kit for Device and Sensor Expansion

The rack mount kit included in the bundle is a 19" bracket that allows the Monitoring System 100T to be mounted neatly and space-efficiently on just 1 rack unit (1U) in a standard server rack. This means the central unit no longer has to sit loose in the rack or be mounted separately on the wall, but is instead firmly and neatly integrated alongside the other rack components. In addition, the kit provides space for an analog sensor expansion unit, so the bundle can be expanded directly in the same rack slot as sensor requirements grow. This keeps all monitoring and alarm technology neatly bundled in one place and always easily accessible.

Comprehensive Sensor Integration for the Bundle

The Monitoring System 100T supports up to 100 sensors, contacts, and relays simultaneously — up to 36 sensors directly in the base configuration via the analog ports and the CAN bus. The temperature, humidity, and door contact sensors occupy three of the four analog ports in the bundle, and the alarm siren is controlled via a relay output — one analog port and the entire CAN bus port remain free for future expansion.

Thanks to the still-free analog port and the fully available CAN bus port, the bundle can be expanded at any time with additional Didactum sensors or expansion units — ideal for growing from solid basic rack monitoring into a comprehensive monitoring network.

Real-Time Monitoring and Automated Alarming

The Monitoring System 100T responds immediately to critical values from all sensors in the bundle. When thresholds are exceeded, the system automatically sends email notifications and SNMP traps and, if needed, activates the included alarm siren via the relay output. With an optionally installed LTE modem, SMS and web-to-SMS notifications are also possible. Integration into monitoring software such as Zabbix, PRTG, Nagios, or Check_MK is straightforward thanks to common network protocols (HTTP, HTTPS, SMTP, FTP, SNMP, Syslog, Modbus TCP/IP, DHCP).

Web-Based Control & Intelligent Automation

The multilingual web interface allows easy management of all bundle components as well as alarms and scenarios — right from initial setup.

• Temperature > 30 °C → turn on ventilation, trigger alarm
• Humidity > threshold → send email to administrator
• Rack door opened → activate alarm siren, send notification
• Alarm event overnight → additionally send SMS to security service (with optional LTE modem)

The Monitoring System 100T can be used as an I/O controller for air conditioning units, UPS systems, generators, lighting, or fans — ideal for IT environment management, building automation, and preventive maintenance.

Full Control

Control the central unit, climate sensors, access monitoring, and alarm siren together — all via an intuitive, web-based interface.

• Monitor real-time data from temperature, humidity, and door contact sensors together
• Create automated actions based on defined conditions
• Send email, HTTP request, SNMP, or other notifications
• Visualize trends and logs for better decisions
• Manage users, permissions, and access securely across three levels

Individually Configurable: Expansion Module & Modem

The Monitoring System 100T in the bundle can already be tailored to your requirements during the ordering process.

Expansion Module

Modem

Scalable, Reliable, and Future-Proof

The Monitoring System 100T in the bundle is equipped with 10/100/1000 Mbit/s Ethernet (Gigabit). The system supports up to 700 elements (sensors, triggers, logic schemes, notifications). Since the bundle's three sensors occupy only three of the four analog ports and the siren is controlled via a relay output, one free analog port and the fully available CAN bus port remain for additional sensors. Regular firmware updates ensure long-term usability. Made in the EU — German support included.

Connecting CAN Sensors

In addition to the remaining analog port, the Monitoring System 100T has a CAN bus port that is still fully available in the bundle. This port allows additional CAN devices to be linked together in a chain — up to 24 CAN devices per chain are recommended, with a maximum of 32 devices per port. Each 8-port sensor expansion adds 8 additional analog sensors to the system, while each dry-contact expansion unit adds 32 or 64 additional dry-contact inputs. The total length of the CAN bus can be up to 230 m; an additional CAN power supply (12V/1A) is only required if the number of CAN devices in the chain exceeds the recommended limit.

Building Monitoring & Physical Security

The door contact sensor and alarm siren already form a complete access and alarm package for the rack within the bundle.

• Door contact sensor detects unauthorized opening of rack or room doors
• Alarm siren warns audibly and visually directly on-site
• Motion detectors and vibration sensors optionally retrofittable via the free port or CAN bus
• Optional OSDPv2 expansion module for card reader integration

All sensor and alarm data are also logged with timestamps, supporting companies with ISO 27001, GDPR, or industry-specific audits.

Setup in Just a Few Minutes

Setting up the bundle is simple and quick — with no additional software required.

1. Mount the Monitoring System 100T with the rack mount kit on 1 rack unit in the 19" rack
2. Connect the device to your network via Ethernet cable and power it on — the system starts automatically
3. Open the device's default IP address in your browser and go through the setup wizard
4. Connect the temperature and humidity sensors to an analog port each — automatic detection
5. Mount the door contact sensor on the rack door and connect it to another analog port
6. Connect the alarm siren to the relay output and link it to the desired alarm rules in the web interface
7. Set thresholds and notification types for all sensors in the web interface

What's Included in the Scope of Delivery

Please check the scope of delivery for completeness upon receipt and report any missing or damaged parts to your supplier immediately.

• Didactum 100T monitoring unit1 piece
• 12V DC power adapter1 piece
• Ethernet cable1 piece
• OTG USB-C cable1 piece
• Quick guide for Monitoring System 100T1 piece
• Warranty card1 piece
• Temperature sensor incl. 2 m connection cable1 piece
• Humidity sensor1 piece
• Door contact sensor incl. mounting bracket1 piece
• Alarm siren with strobe light1 piece
• Rack mount kit (19", 1U) incl. mounting hardware1 piece

Depending on the selected options (expansion module and/or LTE modem), the scope of delivery of the central unit may be extended accordingly.

Why This Bundle Is the Right Choice

Practical Application Examples

• Climate and access monitoring of individual racks in server rooms and data centers
• Immediate on-site alarming for unauthorized access outside business hours
• Securing network distributors and floor distribution rooms
• Upgradable base for additional sensors via CAN bus and free analog port
• Remote monitoring of branches or remote locations via LTE modem
• Verifiable event logging for audits and compliance

This bundle of Monitoring System 100T, temperature sensor, humidity sensor, door contact sensor, alarm siren, and rack mount kit combines central IT monitoring, precise climate measurement, access control, and immediate on-site alarming into a ready-to-use, rack-ready solution.

More About the Bundle

Frequently Asked Questions