Ethernet temperature, humidity and CO₂ sensor with PoE Comet TA3645

Ethernet temperature, humidity and CO₂ sensor with PoE Comet TA3645


Comet Comet TA3645 is a professional Ethernet monitoring unit with two inputs for precise Pt1000 temperature probes and one digital input for temperature, humidity or CO₂ concentration measurement. With support for PoE, COMET Cloud, Modbus TCP and SNMP, it is an ideal solution for monitoring cold stores, freezers, laboratories, production facilities and technological equipment. More
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Comet Comet TA3645 is a professional Ethernet monitoring unit with two inputs for precise Pt1000 temperature probes and one digital input for temperature, humidity or CO₂ concentration measurement. With support for PoE, COMET Cloud, Modbus TCP and SNMP, it is an ideal solution for monitoring cold stores, freezers, laboratories, production facilities and technological equipment. More
Product code: COM-TA3645 Shipping and Payment

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Comet TA3645 is a professional Ethernet monitoring unit designed for accurate measurement of temperature, humidity, and CO₂ concentration in industrial, laboratory, and technical applications. It combines two inputs for highly accurate Pt1000 temperature probes with one digital input for a temperature and humidity probe or a CO₂ sensor. This combination allows multiple environmental parameters to be monitored simultaneously using a single device.

The unit is particularly suitable for applications where extreme temperatures must be monitored while also maintaining control over ambient environmental conditions. Pt1000 probes enable measurements across a wide temperature range, depending on the selected probe type, making the TA3645 an ideal solution for cold storage facilities, freezers, cryogenic applications, laboratories, pharmaceutical environments, and industrial processes.

Thanks to Ethernet connectivity and PoE support, the device can be easily integrated into existing network infrastructure. Both power and data communication can be provided through a single Ethernet cable, reducing installation complexity and lowering deployment costs.

Measured values can be monitored through the built-in web interface or via COMET Cloud. Users gain continuous access to real-time data and can configure automatic alarm notifications whenever predefined limits are exceeded.

The TA3645 is designed for integration into professional monitoring, automation, and Building Management Systems (BMS). It supports Modbus TCP and SNMP communication protocols and offers secure communication via HTTPS, TLS, and SNMPv3. Support for both IPv4 and IPv6 ensures compatibility with modern enterprise networks.

A large backlit LCD display provides instant access to measured values directly at the installation site. The device also includes LED alarm indication and audible alarms for rapid detection of abnormal conditions.

Typical applications include:

  • Cold storage and freezer monitoring
  • Laboratory refrigerator monitoring
  • Pharmaceutical storage facilities
  • Industrial process monitoring
  • Monitoring of ovens and technical equipment
  • Server rooms and data centers
  • Cleanrooms
  • Healthcare and laboratory environments

Key Benefits:

  • 2 inputs for highly accurate Pt1000 probes
  • 1 digital input for temperature, humidity, or CO₂ measurement
  • Supports extreme temperature monitoring depending on the connected probe
  • Ethernet communication
  • IEEE 802.3af PoE power supply
  • Online monitoring via web interface
  • COMET Cloud support
  • Email alarm notifications
  • Modbus TCP and SNMP support
  • HTTPS, TLS, and SNMPv3 security
  • Large backlit LCD display
  • LED and audible alarm indication
  • Internal backup memory
  • 3-year manufacturer warranty
Parameters
Meter function MAX / MIN - save the maximum and minimum value ALARM - signaling when the set value is exceeded SOFTWARE - the device can be used with operating software DEW POINT - dew point measurement function
Advanced features 4 inputs Comet database software Database viewer Data report Email Ethernet Extended Warranty IP protection Min / Max Modbus Monitoring system PoE Remote control Relative humidity SNMP SOAP SYSLOG Temperature TRAP WWW interface XML format
Temperature range (max) závisí na typu připojené sondy
Temperature range (min) závisí na typu připojené sondy
Temperature resolution závisí na typu připojené sondy
Temperature measurement accuracy Podle zvolené sondy
Humidity measurement range Podle zvolené sondy
Humidity measurement accuracy Podle zvolené sondy
CO2 measurement range 10000 ppm
CO2 measurement accuracy 100 ppm + 5% of the measured value at 23 °C and 1,013 hPa
CO2 measurement resolution 1 ppm
Connectors for sensors ELKA CINCH
Connectivity Ethernet
Communication protocols WWW, SNMPv1, XML, HTTP(S), SMTP, ModbusTCP, SOAP, Json
Shortest recording interval 2 s, 15 s
power supply síťový zdroj do zásuvky, Ethernet (IEEE 802.3af)

What is the Comet TA3645 used for?

The Comet TA3645 is a professional Ethernet monitoring unit designed for measuring temperature, humidity, and CO₂ concentration. It supports two Pt1000 temperature probes and one digital probe for temperature, humidity, or CO₂ monitoring.

What types of probes can be connected to the device?

The device supports two external Pt1000 temperature probes and one digital probe for measuring temperature and humidity or CO₂ concentration.

Is the TA3645 suitable for cold storage and freezer monitoring?

Yes. Thanks to its support for Pt1000 probes, the TA3645 is ideal for accurate monitoring of low temperatures in cold rooms, freezers, laboratory refrigerators, and other temperature-critical environments.

Can the TA3645 measure CO₂ concentration?

Yes. A compatible CO₂ probe can be connected to the digital input, allowing CO₂ concentration to be monitored alongside temperature and humidity.

Does the device support PoE power supply?

Yes. The TA3645 supports Power over Ethernet (PoE) according to the IEEE 802.3af standard, enabling power and communication through a single Ethernet cable.

Does the device have a display?

Yes. The TA3645 features a large backlit LCD display that shows current measured values directly on the device.

Can alarm limits be configured?

Yes. Users can define alarm thresholds and receive notifications whenever measured values exceed configured limits.

Does the TA3645 support COMET Cloud?

Yes. Measurement data can be accessed remotely through COMET Cloud, providing online monitoring from anywhere.

Can the device be integrated into a BMS system?

Yes. The TA3645 supports Modbus TCP and SNMP protocols, making it suitable for integration into BMS, SCADA, and other monitoring systems.

Who is the TA3645 designed for?

The device is intended for laboratories, pharmaceutical facilities, industrial operations, building managers, cold storage operators, and any application requiring reliable online monitoring of temperature, humidity, or CO₂ concentration.

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