Ambient CO2, Temperature and Humidity transmitter

Sigfox high power logoTX TEMP HUM AMB SIGFOX HP 100-002


✅ Suitable for indoor use
✅ Meets government requirements for IAQ public places
✅ Compact Design
✅ Easy to deploy
✅ Freestanding or wall mounted
✅ Replaceable battery
✅ Up to 10 years autonomy
✅ Advanced Features : Alarms and Remote Configuration

Also available in version :

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Reference of the Ambient CO2, Temperature and Humidity transmitter




Applications of the transmitter


Specifically designed for indoor applications in an ambient environment, the Enless Wireless Sigfox CO2, humidity and temperature transmitter allows you to monitor occupant comfort levels, thanks to its integrated sensors of temperature, humidity and carbon dioxide (data ppm – °C – %rH ). Its onboard CO2, temperature and humidity sensors transmit their data to the Sigfox cloud.  The frequency of transmission is adjustable.

The CO2 content is the main indicator of the air quality breathed by users.

CO2 and air quality have a direct influence on the daily comfort of occupants in enclosed spaces, such as offices, and can trigger side effects like fatigue, drowsiness, etc. The odourless carbon dioxide is caused by pollution, and of course from human breathing. The CO2 content is measured as a percentage of air volume or as “ppm” (part per million). Thus 1,000 ppm is equal to 0.1% of carbon dioxide in the air.

Our temperature, humidity and CO2 Sigfox transmitter is suitable for many applications and sectors :

  • Housing (social housing, etc.)
  • Public access buildings such as public educational buildings (schools, colleges, high schools, higher education establishments, training centres, etc. ), cultural – sometimes for the preservation of goods and works – (museums, castles, sports complexes, libraries, showrooms, city halls, etc.) and sanitation (health facilities, hospitals, retirement homes, EHPAD…)
  • Tertiary sector

Our product enables compliance with government, environmental and health laws and requirements for indoor air quality monitoring (IAQ), particularly in public buildings. This monitoring IoT device contributes particularly to the monitoring of vulnerable groups such as the elderly, sick or very young.

Totally discreet, our Sigfox sensor can be fixed to a wall but also positioned on a surfaceThe frequency of sending information (periodicity) is configurable.



Technical Specifications


DimensionsL 99 x H 85 x W 32 mm
Enclosure and IP ratingABS IP 40
Power supplyReplaceable C 3.6 V Lithium battery - Low battery alert
Battery autonomy / Periodicity2 years battery life with 120mn periodicity / Configurable periodicity
Configuration / InstallationRadio via downlink - from Sigfox Backend or APIs
Temperature sensor accuracy+/- 0,2°C
CO2 range0 - 5000 ppm
Humidity sensor resolution+/- 2% rH
Advanced featuresRemote configuration


All Enless Wireless Sigfox products incorporate an advanced configuration mode that allows you to optimise their battery performance and facilitate their use:

> You can set high and low alarm thresholds for your transmitter and have your transmitter wake up frequently and take a measurement. If the threshold is exceeded, your transmitter can send an alert frame immediately without waiting for its next shipment.

> You can remotely change your transmitter configuration from the Sigfox Backend without manual intervention or the need to restart the transmitter to take its new configuration.


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