Carbon monoxide sensor and precalibrated sensor module

https://www.dart-sensors.com/carbon-monoxide/

The formaldehyde sensor module technology has been adapted for use in a novel precalibrated CO sensor module, outputting a ppm carbon monoxide reading directly. The simple low cost uncalibrated sensor remains on sale at $6 with volume discounts negotiable. These products are assembled in China by our partner company Prosense Technologies, contain Dart Sensors electrode components, and are shipped from our China office.