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) Applicable gas: smoke, carbon monoxide Sampling method: natural diffusion Sensors: semiconductor sensors, electrochemical sensing. Alarm set value: smoke 0.3db/M Environmental conditions: indoor temperature -10℃~55℃ Relative humidity ≦95% RH Response time: less than 30 seconds Recovery time: less than 30 seconds Alarm mode: sound and light alarm Alarm volume: ≥70dB (1 meter in front) Service life: 3 years Standby current: Green light: flashes once every 15 seconds Certification: UL report Carbon monoxide gas alarm value: No alarm: Concentration Alarm within 60-90 minutes: 50 PPM≥Concentration≥99 PPM Alarm within 10-40 minutes: 100 PPM≥Concentration≥299 PPM Alarm within 3 minutes: Concentration≥300 PPM Package included: 1 x Composite Type CO Gas Smoke Detector 1 x English User Manual 2 x Screw 2 x Plastic Cap for Screw