JSN-JY-909COM Composite Type CO Gas Smoke Detector Accurate Carbon Monoxide LCD Screen Monitor Battery Powered
Using advanced semiconductor sensors and electrochemical sensors, it can detect and monitor carbon monoxide gas and smoke sensitively
Keep your family safe with this carbon monoxide alarm
When the carbon monoxide detector detects that the concentration of carbon monoxide reaches a dangerous level, the green light will flash and the alarm will sound at loudly sound volume(≥75dB)
Equipped with an HD digital display screen, allowing you to easily read the carbon monoxide concentration
Requires no wiring so you can easily install it in minutes without electricians on the wall or anywhere at home
Specification:
Size: 37*107mm
Working power: 3*AA batteries DC 4.5V (battery not included)