Didactum CAN Combo Sensor – Smoke, Temperature & Humidity

Continuous climate control and early fire detection are essential prerequisites for the secure operation of data centers, server rooms, industrial facilities, warehouses, and museums. The Didactum CAN Combo Sensor for smoke, temperature, and humidity combines three important functions in one compact device. It precisely measures temperature, detects relative humidity, and identifies smoke development in real time. This makes it a comprehensive tool for preventive infrastructure monitoring.

Comprehensive Functions in One Sensor

• Temperature monitoring: early warning of overheating or critical fluctuations.
• Humidity detection: identification of critical humidity levels and automatic dew point calculation.
• Smoke detection: immediate fire detection with alarm triggering.

All measurement values are displayed separately in the central Didactum web interface. Individual thresholds can be configured, and automatic actions can be defined, such as triggering alarms, controlling ventilation, or sending notifications.

Scalable CAN-Bus Daisy-Chain Architecture

Thanks to CAN-Bus technology, the combo sensor is highly scalable. Up to 32 CAN sensors can be connected in a daisy chain. This allows centralized monitoring of even large-scale data centers or distributed industrial environments. Each measured parameter is displayed individually in the system and can be integrated into SNMP-based monitoring solutions such as Nagios, Zabbix, PRTG, or OpenNMS.

Sensor Functions in Detail

• Logic schemes: flexible IF-THEN rules for automated control (e.g., activating cooling when temperature exceeds threshold).
• Dashboard: modern web interface with configuration options, multi-graphs, and real-time data display.
• Thresholds: multi-level configuration for temperature, humidity, and smoke values.
• Long-term data logger: recording on SD card (up to 500 GB) for compliance and audits.
• Modularity: expandable with additional CAN sensors for customized monitoring solutions.

Typical Applications

• Data centers & server rooms: protection against overheating, condensation, and fire risks.
• Industrial facilities: continuous monitoring of machine environments.
• Warehouses & logistics: protection of temperature-sensitive goods (pharma, food, artwork).
• Museums & archives: preservation of delicate exhibits through precise climate control.
• Building management: integration into modern BMS systems for HVAC and safety.
• Smart buildings: automatic alerts for smoke or critical climate conditions.

Integration into Monitoring Environments

With support for SNMP v1/v2c/v3, the sensor can be fully integrated into network management systems. Administrators can forward alerts via:

• E-mail
• SMS/GSM gateway
• SNMP traps

in case of escalation. This enables centralized alarm handling and fast response times.

Practical Benefits

• Cost savings: reduces downtime risks and maintenance costs.
• Operational security: protects infrastructure and data from climatic damage or fire.
• Scalability: multiple sensors can be used for large-scale installations.
• Compliance & audits: long-term documentation of all values.

FAQ – Frequently Asked Questions

How many sensors can be operated in a daisy chain?
Up to 32 combo sensors.

Which protocols are supported?
SNMP v1/v2c/v3 for integration with Nagios, Zabbix, PRTG, OpenNMS, Tivoli, and more.

Is dew point calculation included?
Yes, automatically based on temperature and humidity values to prevent condensation.

Can the sensor replace a smoke detector?
It provides reliable early fire detection but should be used as part of a comprehensive fire protection concept.

How are alerts triggered?
Via e-mail, SMS, or SNMP traps, optionally connected to sirens or strobe lights.

The Didactum CAN Combo Sensor for smoke, temperature, and humidity is a universal multi-sensor device that combines climate control and early fire detection in one module. With SNMP integration, AutoSense, daisy-chain scalability, and long-term logging, it meets the highest requirements in data centers, industrial facilities, building management, and cultural environments. It is therefore an indispensable component of modern monitoring and security solutions.