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Comet WebSensor with PoE - remote temeperature, humidity, CO2 concentration with Ethernet interface


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Comet WebSensor with PoE - remote temeperature, humidity, CO2 concentration with Ethernet interface

CO2 - carbon dioxide t-line Web sensor. Remote alarm.

Web Sensor with temperature, humidity, CO2 cable probes with PoE function.

A multiple point CO2 and temperature adjustment procedure leads to excellent CO2 measurement accuracy over the entire temperature working range; this is a must for process control and outdoor applications. The dual wavelength NDIR CO2 sensing procedure compensates automatically for ageing effects. The CO2 module is highly resistant to pollution and offers maintenance free operation and outstanding long term stability.

The device is supplied with probes with 1m cables. Cable lengths 2 or 4 10 meters available optionally.



  • Temperature
  • Relative humidity
  • Counted values (dew point…)
  • CO2


  • Measuring range -30 to +105 °C
  • Accuracy ±0.4 °C
  • Resolution 0.1 °C


  • Measuring range 5 to 95 % RH
  • Accuracy ± 2,5 % RH
  • Resolution 0.1% RH


  • Measuring range -60 to +80 °C
  • Accuracy ±1.6°C at ambient temperature T<25°C and RH>30%
  • Resolution 0.1 °C


  • Measuring range 0 to 10 000 ppm
  • Accuracy ±(110ppm +5% from reading) at 25°C and 1013hPa
  • Resolution 1 ppm


          • Operating temperature -30 to +80 °C
          • Channels 1x connectable temperature+humidity probe, 1x external CO2 sensor
          • Counted values dew point, absolute humidity, specific humidity, mixing ratio, specific enthalpy
          • Output Ethernet
          • Measuring interval 2 s; CO2 15 s
          • Range of humidity sensor temperature compensation all temperature range
          • Communication protocol WWW, ModbusTCP, SNMPv1, SOAP, XML
          • Alarm protocols E-mail, SNMP Trap, Syslog
          • Power Power over Ethernet according to IEEE 802.3af or 5Vdc
          • Protection class IP30 electronics; IP40 temperature+humidity sensor; IP65 CO2 sensor
          • Dimensions 136 x 117 x 45 mm
          • External probe T+RH cable length 1 meter (optionally 2 or 4 meters)
          • External probe cable length CO2 1 meter (optionally 2 or 4 meters)
          • Weight approx. 150 g
          • Warranty 3 years


          * the features may vary depending on the device type

          • accurate measurement of Temperature, Relative humidity, Dew point, Atmospheric pressure, CO2, Two-state events
          • communication protocols SNMP, Modbus TCP, SOAP, XML
          • webserver to display current and recorded values
          • alarm indication via email
          • selected models with PoE
          • data analysis in COMET Database software


            Comet Database One Click Installer (20.1-II)

            Database Viewer dbapi 20.1

            TSensor (3-4-1-0)

            Sensor Reader (2-0-6-0)

            Conversions - application for recalculation of values


            Terms and Conditions COMET System s.r.o.


            Instruction Manual

            Quick Start Manual

            Declaration of Conformity

            COMET Cloud security

            How to add WebSensor to COMET Cloud



            CATALOG - CO2

            CATALOG - WebSensor with Ethernet output

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