Aranet4 Sensor – HOME & PRO

Battery Powered CO2

Aranet4 sensor is an innovative, stand-alone device for effortless monitoring of indoor air quality - CO2, relative humidity, temperature and atmospheric pressure. The Aranet4 sensor is powered with 2 AA batteries. The device is suitable for monitoring the CO² level in indoor environments such as at home, in office or at school. It displays measurement data on power-efficient e-ink screen allowing for long battery life. The device can provide visual and sound notifications in case the CO² level surpasses the high concentration level of 1400 ppm (parts per million)–level typically associated with complaints of drowsiness and poor air quality.

Product Details

  • CO₂, temperature, relative humidity, atmospheric pressure monitoring
  • NDIR CO₂ sensor
  • Energy-efficient e-ink display
  • Smartphone app - Google Play & Apple App Store
  • Up to 2-year battery life (2xAA)
  • Access to the Aranet business ecosystem (Aranet PRO, Aranet Cloud, SensorHUB) – only available with Aranet4 PRO

The Aranet4 sensor is portable, simple to install, easy to operate and lets you know when CO2 levels have become unhealthy. Google play and Apple Store Apps allow the user to set up and use the product within minutes. We can alter settings to suit your needs.

To stop thieves, the Aranet4 has an anti-theft wall mount (sold separately). The wall mount uses a Security screw that needs a screwdriver with a Torx T15 insert bit to remove it.

The Aranet4 sensor is compatible with Aranet Cloud. This service is an industrial grade solution for IoT ecosystems’ remote management. Personalise your data with custom dashboards, graphs and user management. Learn more

Check out our other battery powered CO2 monitors. For example the ExploraCO2 or the Senseair Aercast.


Onsite Diagnostics

If you require onsite diagnostics or technical assistance with any of our products please give us a call

01905 797989 Contact


We recommend Duomo Gas Detection products are serviced at least annually to ensure efficacy and extend sensor life. Our qualified team of engineers are available Nationwide.


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