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First commercially available wireless carbon dioxide sensor for sustainable buildings

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By eeNews Europe


Since becoming a member, GSS has been working closely with the EnOcean Alliance and its other member companies to integrate the EnOcean Standard in its product portfolio. Enabled by EnOcean self-powered wireless technology, the COZIR CO2 sensor works entirely without batteries and is absolutely maintenance-free. It also has very low power consumption and a fast warm-up time of less than two seconds, making it ideal for applications such as Indoor Air Quality (IAQ) monitoring, Heating, Ventilation and Air Conditioning (HVAC) systems, Horticultural and Building Control.

COZIR utilises EnOcean’s energy harvesting technology in which the sensor draws ambient energy from motion, light or temperature differences in its surroundings. Using available room light to power the CO2 sensor, three readings are taken every 10 minutes and the values are sent wirelessly to a receiver, which sets an alarm to open a ventilation system, for example. When no room light is available the sensor operates on stored energy in energy storage mode, taking fewer measurements or only sending signals when critical values are measured. In this way EnOcean-enabled devices can work fully autonomously, at low cost.

The COZIR CO2 sensor incorporates a non-dispersive infra-red (NDIR) configuration based on GSS patented technology, combined with low loss compact injection moulded optics and low noise electronics. It consumes only 3.3 mW in continuous operation, with two CO2 measurements per second, which is typically 50 times lower power than standard NDIR sensors. The sensor is available in three ranges: 0 to 2000 ppm, 0-1 percent or 0-2 percent.

The COZIR low power consumption sensor offers many benefits compared to conventional NDIR CO2 gas sensors. Other features include average current of less than 1.1 mA, operating voltage 3.3 V, short warm up time of under 2 seconds, and compatibility with EnOcean Standard wireless communications.

For further information: www.cozir.com, www.gassensing.co.uk.


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