Wireless CO2 sensors

Measure the indoor air quality in each room or zone

Our wireless multi-sensors measure and monitor the carbon dioxide (CO2) levels, ambient temperature and relative humidity in a room or zone. The small wireless CO2 sensors simply stick onto the wall and are solar-powered using ambient room light, making them easy to install and very low maintenance.


Get accurate, reliable indoor air quality updates

The sensor sends CO2, temperature and humidity measurements every 5-15 minutes. Designed for fitting at head height to ensure accurate air quality readings.


Solar-powered for easy install and low maintenance

The sensors use ambient room light – natural or lighting – for power, making them super easy to install and very low maintenance.


Access real-time data locally or in the cloud

CO2, temperature and humidity data can be sent securely to a local network or the cloud — via Ethernet, LTE (4G) or WiFi — using Pressac’s smart gateway.


  • Small, discreet sensors simply stick to the wall
  • Measures ambient carbon dioxide (CO2), temperature and relative humidity:
    • CO2 0-2550PPM (accuracy +/- 125PPM)
    • Temperature 0-51ºC (accuracy +/- 0.5ºC)
    • Humidity 0-100% RH (accuracy +/- 5%)
  • Reports every 5 minutes when solar-powered or 15 minutes
    when battery-powered.
  • Solar-powered using ambient room light – optimally angled
    to absorb light – with a battery back-up for periodic
    low-light conditions. Batteries typically last up to 10 years
  • Transmit data wirelessly via EnOcean wireless protocol, which uses internationally approved, licence-free ISM bands
    • 868 MHz for Europe (RED)
    • 902 MHz for North America (FCC) and Canada (IC)
    • 928 MHz for Japan (ARIB specification)
  • EnOcean Equipment Profile (EEP): A5-09-04
  • No recurring fees. Access the data through your chosen platform, without any additional costs from Pressac
  • Manufactured in the UK to high-quality and high-safety specifications, they are subject to rigorous testing procedures
  • Dimensions: 115 x 80 x 35 mm (approx)

If you’re looking to order over 100 sensors or have regular requirements for sensors, please contact us to discuss pricing options.


Wireless smart sensor and connected technology


Quick to install and set up


Ultra-low power, energy-harvesting


Secure licence-free transmission


Interoperable and scalable


Highest quality and compliance

Easily access and integrate real-time CO2 sensor data

Our technology is system agnostic, the data from our sensors can be used in any way you need. There are different options to choose from, making it easy to get your data in the way that’s right for you.


Access your sensor data in a spreadsheet


Visualise sensor data using Node-RED


Integrate live data into any software or IoT platform


Feed sensor data into existing building management systems


Connect sensors directly to EnOcean controllers


Want to learn more?

Download our product brochure to learn more about our smart-building sensor technology.

Pressac’s smart building technology is used in millions of businesses and homes worldwide

As a trusted partner to some of the world’s leading companies, we’ve been designing and manufacturing smart technology for over 60 years.

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    If you're looking for a forward-thinking technology partner who offers high-quality, cost-effective sensing solutions at scale - get in touch.
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