Wireless, self-powered CO2 sensors
Accurately measure the CO2 levels in each room. Wirelessly transmits the data to your chosen IoT cloud via our Smart Gateways.
Get accurate, reliable indoor air quality updates
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.
Our wireless multi-sensors measure the carbon dioxide (CO2) levels, ambient temperature and relative humidity in a room or zone. The sensors wirelessly transmit data to your chosen IoT cloud, via our Smart Gateways.

Monitor the carbon dioxide (CO2) levels, ambient temperature and relative humidity in a room or zone
Get accurate updates every 5-15 minutes
Designed for fitting at head height to ensure accurate air quality readings. The sensor sends data every 5 minutes when solar-powered or 15 minutes when battery-powered.
Solar powered
The sensors use ambient room light – natural or lighting – for power, with a backup battery power source giving you continual operation in the evening.
Access real-time data locally or in the cloud
Data can be sent securely to a local network or the cloud — via Ethernet, LTE (4G) or WiFi — using Pressac’s smart gateway. No subscriptions or recurring fees.
Want to buy CO2 sensors for your smart project?
Looking to order sensors for a project or have regular requirements for sensors?
Technical specifications
Features |
Measures ambient carbon dioxide (CO2), temperature and relative humidity. Reports every 5 minutes when solar-powered or 15 minutes when battery-powered. Small, discreet sensors simply stick to the wall. |
Range | CO2 0-2550PPM (accuracy +/- 125PPM) Temperature 0-51ºC (accuracy +/- 0.5ºC) Humidity 0-100% RH (accuracy +/- 5%) |
Wireless communication |
EnOcean internationally approved, licence-free ISM bands: Up to 30 metres line of sight. Repeaters can extend range up to 90 metres. |
Power | 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. |
Dimensions | 115 x 80 x 35 mm (approx) |
How it works
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.

Find out how CO2 monitoring sensors are helping create healthier workplaces

Smart. Scalable. Secure.
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.