Monitoring System 500T IT Basic Protection

IT Basic Protection Bundle: 19" Central Unit with Temperature, Humidity, Water, and Smoke Monitoring

This Didactum bundle combines the Monitoring System 500T with four essential analog sensors - temperature, humidity, water, and smoke - to create a complete basic protection solution for data centers, server rooms, and other business-critical environments. It covers the four most common risk factors in IT environments right from the start: overheating, condensation, water ingress, and fire.

As a highly advanced 19"-1U control unit without moving parts, the Monitoring System 500T forms the central control and alerting unit of the bundle: it is connected to the network via Gigabit Ethernet, can be fully configured through the web browser, and requires no additional software. All four sensors are connected directly to the 500T's analog ports and are automatically detected via AutoSense - of the 8 permanently installed analog ports on the central unit, four are used for basic protection.

As your requirements grow, this bundle grows with them: four additional analog ports as well as the entire CAN bus port of the 500T remain free, so additional sensors or expansion units can be added at any time - without replacing the central unit.

This bundle includes:

Five perfectly matched Didactum products that together provide complete basic protection for data centers and server rooms.

Monitoring System 500T

The Monitoring System 500T is the central control unit of the bundle and a highly advanced, field-tested 19"-1U monitoring solution for data centers, server rooms, and other business-critical environments. As a standalone device without moving parts such as fans or hard drives, it continuously captures critical environmental parameters and alerts in real time long before they lead to costly downtime. Via 8 analog ports and one CAN bus port, sensors can be automatically detected by AutoSense, while 16 potential-free inputs and 4 relay outputs also make the 500T usable as an I/O controller for doors, fans, generators, or UPS systems. The system is now equipped with Gigabit Ethernet (10/100/1000 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 temperature sensor included in the bundle is used for precise monitoring and measurement of the internal temperature in the monitored room or rack and is connected directly to an analog port of the Monitoring System 500T via RJ11 plug. The device automatically detects the sensor, displays it in the web interface, and enables individual configuration of threshold values and notifications there. The sensor is wired, includes a 2-meter cable, and can be placed up to 100 meters away from the central unit if required, making it suitable for large data centers or adjacent rooms as well. As the first of four basic protection sensors, it provides 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 also connected directly to the Monitoring System 500T 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 discreetly in racks, on walls, or on tabletops. Continuous humidity monitoring helps detect condensation risks early and ensures optimal conditions for sensitive IT equipment. With an optional connection cable that can be extended up to 50 meters, the sensor can be flexibly positioned exactly where humidity is to be monitored.

Water Sensor

The water sensor in the bundle detects moisture and leaks capacitively between two measuring poles made of stainless steel, which are enclosed in a robust, corrosion-resistant plastic housing. Thanks to its low operating voltage and non-metallic measuring principle, it remains functional in the long term even with prolonged contact with moisture. The sensor is plug-and-play compatible with any analog port of the Monitoring System 500T and is especially suitable for placement under raised floors, near air conditioning units, pipes, or server cabinets. With a response time of around 15 seconds, it triggers an alarm reliably and quickly in an emergency so that IT staff can respond immediately.

Didactum Smoke Sensor

The Didactum smoke sensor included in the bundle provides early fire detection and therefore protects the fourth critical risk factor in server rooms and technical areas. It operates on the photoelectric detection principle, is installed for ceiling mounting, and reports rising smoke long before it develops into a major fire with data loss and costly equipment damage. Through two RJ12 ports, the sensor can be connected directly to an analog port of the Monitoring System and can also be chained with up to 10 additional sensors, making it suitable for larger monitoring areas as well. With an average service life of at least 10 years and manufacturing in the EU, it is designed for long-term use in critical infrastructure.

Comprehensive sensor integration for the bundle

The Monitoring System 500T supports up to 130 sensors, contacts, and relays simultaneously - 8 analog RJ12 sensor ports are available directly on the device, and the CAN bus can expand this number to up to 64 sensors. The four sensors included in the bundle for temperature, humidity, water, and smoke occupy four of the eight analog ports and thus cover the four most common risk factors in IT rooms - four additional analog ports as well as the entire CAN bus port remain free for future expansion.

Thanks to the four remaining free analog ports and the completely free CAN bus port, the bundle can be expanded at any time with additional Didactum sensors or expansion units - ideal for developing from solid basic protection into a comprehensive data center monitoring network.

Real-time monitoring and automated alerting

The Monitoring System 500T reacts immediately to critical values from all four supplied sensors. When thresholds are exceeded, the system automatically sends email notifications, SMS, web-to-SMS, PUSH messages, or SNMP traps, or activates a siren. If the network fails, the device can even communicate via the mobile network and receive commands by SMS. 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, Modbus TCP/IP).

Web-based control & intelligent automation

The intuitive web interface allows simple management of all four basic protection sensors as well as alarms and scenarios - right from the moment the bundle is put into operation.

• Temperature > 28 °C AND humidity < 30 % → activate fans, increase air conditioning, send email
• Water ingress detected → activate pump, trigger siren, send email notification
• Smoke detected → activate siren, switch off power supply via relay
• Humidity > threshold → send SMS to administrator (with optional LTE modem)

The Monitoring System 500T can be used as an I/O controller for air conditioning, UPS, generators, lighting, doors, or fans - ideal for data center management, building automation, and preventive maintenance.

Full control

Monitor the central unit and all four basic protection sensors, turn sensor data into actionable insights, and configure integrations - all through an intuitive web-based interface.

• Monitor real-time data from temperature, humidity, water, and smoke sensors together
• Create automated actions based on defined conditions
• Send email, Telegram, HTTP request, SNMP, or other notifications
• Visualize trends and logs for better decision-making
• Manage users, permissions, and access securely

Individually configurable: expansion module, modem & power supply

The Monitoring System 500T in the bundle can already be customized to your requirements during the ordering process.

Expansion module

Modem

Power supply

The 500T is available in five power supply variants. In redundant variants, the device automatically switches to the line with the higher applied voltage, so the failure of one line does not interrupt operation.

In addition, a battery backup can optionally be retrofitted for all variants, temporarily supplying the device in the event of a complete failure of all mains inputs.

Scalable, reliable, and future-proof

The Monitoring System 500T in the bundle is equipped with 10/100/1000 Mbit/s Ethernet (Gigabit). The system supports up to 1000 elements (sensors, triggers, timers, logic schemes, notifications). Since the four basic protection sensors occupy only four of the eight analog ports, four free analog ports and the fully free CAN bus port are available for additional sensors. Regular firmware updates ensure long-term use. Made in the EU - German support included.

Connect CAN sensors

In addition to the four remaining analog ports, the Monitoring System 500T has a CAN bus port that remains completely free in the bundle. Multiple CAN devices can be connected together in a chain via this port. Each 8-port sensor expansion adds 8 additional analog sensors to the system, and each dry-contact expansion unit adds 32 or 64 additional dry-contact inputs. The maximum distance of CAN devices from the unit is up to 225 m; an additional CAN power supply (12V/1A) is only required if the number of CAN devices in the chain exceeds 12.

Building monitoring, video & physical security

Through the free ports and the CAN bus, the bundle can be expanded at any time to include security and video technology.

• Glass break sensors detect broken windows
• Motion detectors and door contacts secure server rooms and technical rooms
• Up to 4 IP cameras or one USB camera for visual monitoring
• 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.

Commissioning in just a few minutes

Setting up the bundle is quick and easy - without any additional software.

1. Mount the Monitoring System 500T in the 19" rack and connect it to your network via Gigabit Ethernet cable
2. Connect the appropriate power supply according to the ordered variant - the system starts automatically
3. In the browser, open the device's default IP address specified in the quick start guide and run through the setup wizard
4. Connect the temperature sensor to an analog port using the RJ11 cable - it is automatically detected via AutoSense
5. Connect the humidity sensor to another analog port
6. Place the water sensor at the location to be monitored and connect it to a third analog port
7. Mount the smoke sensor on the ceiling and connect it to the fourth analog port
8. Set threshold values and notification types for all four sensors in the web interface

What is included in the scope of delivery

Please check the contents upon receipt for completeness and report missing or damaged parts to your supplier immediately. Additionally ordered options (expansion module, modem, battery backup) are not included here and are supplied separately.

• Didactum 500T monitoring unit1 piece
• OTG USB-C cable1 piece
• UTP Ethernet cable, 3 m1 piece
• Micro USB-C OTG adapter cable1 piece
• 19" rack brackets2 pieces
• M3 × 8 mm Phillips pan head screws6 pieces
• 6-pin terminal block, 5.08 mm1 piece
• 3-pin terminal block, 3.81 mm1 piece
• 6-pin terminal block, 3.5 mm4 pieces
• 2-pin terminal plug, 3.81 mm15 pieces
• Self-adhesive rubber feet4 pieces
• Quick start guide1 piece
• Temperature sensor incl. 2 m connection cable1 piece
• Humidity sensor1 piece
• Water sensor incl. mounting bracket1 piece
• Didactum smoke sensor1 piece

If the "230V AC (Redundant)" or "230V AC + 24V-48V DC" option is selected, a second power cable is included. Depending on the selected power supply option, the included terminal blocks may differ.

Why this bundle is the right choice

Practical application examples

• Basic climate, fire, and leak monitoring in data centers and server rooms
• Protection of rack rows against the most common causes of downtime
• Early warning system for technical rooms without existing building management systems
• Basic protection for network distribution rooms and floor distribution rooms
• Expansion with access, vibration, or dust particle sensors via free ports and CAN bus
• Audit-proof event logging for audits and compliance

This bundle of Monitoring System 500T, temperature sensor, humidity sensor, water sensor, and smoke sensor combines central IT monitoring with complete basic protection against the four most common risks in data centers and server rooms - for early detection of hazards, fewer outages, and maximum system availability.

More about the bundle

Frequently Asked Questions