Design win; gas sensors enable personal monitor for airborne volatiles

August 16, 2016 // By Graham Prophet
Gas sensors from Cambridge CMOS Sensors (CCMOSS), recently acquired by ams, are the basis of the “Cling” VOC fitness wristband, a wearable product that can measure indoor air quality, and alcohol in breath.

CCMOSS (Cambridge, UK & Premstaetten, Austria) has disclosed that Chinese wearable device manufacturer HiCling is using its ultra-low power gas sensors to enable the new Cling VOC smart fitness wristband, exploiting the CCS801 and CCS803 sensors’ small size, high accuracy and very low power consumption.


The CCS801 gas sensor can detect low levels of VOCs (Volatile Organic Compounds) typically found indoors. In the Cling VOC wristband, these VOC measurements are used to provide an indication of air quality on the band’s display. The wristband can also provide alcohol breath analysis on demand, as the integrated CCS803 gas sensor with algorithms is sensitive to ethanol on human breath. The small footprint and low profile of the CCS8xx family of gas sensors mean that they can easily be accommodated in the slim enclosure of the Cling VOC, which is intended to appeal to fashion-conscious consumers.


The CCS8xx sensors use a CMOS-based micro-hotplate platform, which enables the device miniaturisation, ultra-low power consumption and fast response times that are critical for wearable devices. Software libraries containing proprietary algorithms and example applications for the An-droid operating environment enable the CCS8xx sensors to be integrated into a wide range of portable consumer applications.


ams’ Paul Wilson, Senior Product Marketing Manager for environmental sensors, comments, “CO 2 levels, offensive odours, smoke and other VOCs can have a strong impact on people’s comfort, productivity, quality of life and wellbeing, so it is vital we are able to measure these VOCs.”


HiCling adds that it selected the sensors as, “ams group company CCS has developed the world’s smallest and lowest-power MOX gas sensors on the market”, according to Richard Chen, CEO.




The Cling VOC Smart Fitness Wristband will be available to buy online from Amazon, Tmall and JD. For more info on HiCling products visit