CO Smoke Detector Carbon monoxide and Smoke Alarm

Standalone 9V CO and Smoke Detector Carbon monoxide and Smoke Alarm
Technical Parameter

Monitor current: ≤ 25 uA
Alarm current : ≤ 45 mA
Working voltage: DC9V battery
Sound Level : ≥85 db (3 m)
Working Temperature: -10 ~ +60 degrees
Operating Humidity: ≤ 95% RH
Sensor Types: composite optical and electrochemical carbon monoxide sensor
Product Size: 140 *41mm
Standard: CE&EN 14604 & RoHS
concentration of alarm:
carbon monoxide:
30 PPM, alarms within 120 minutes;
50 PPM, alarms within 60~90 minutes alarm
100 PPM, alarms within 10 ~40 minutes alarm;
300 PPM, alarms within 3 minutes
smoke: 1% ~ 5% / FT OBS