Indoor Carbon Monoxide Detector and Controller, Real time detect and Indicate carbon monoxide level with 6 indicator lights.

1. Wall mounting, real time detect CO level with measuring range of 0~500ppm.

2. Japanese semiconductor CO gas sensor is inside with normal 5 years lifetime.

3. Full time detects the ambiance carbon monoxide with six indicator lights indicating six different CO ranges

4. One on/off output optional for control a fan or an alarm device.

5. Convenient to select the CO range to control the relay output during four carbon monoxide ranges via a set of jumpers so that