specifications:sensor: electrochemical carbon monoxide sensor
detecting range: 0-999ppm
sensitivity: 5ppm
error: ¡¨¤10% +15ppm
the detecting precision is affected by detector itself and the temperature and humidity of the installation environment
the best installation environment: 20
numerical readings and note: 3-digit lcd display of levels
normal reading: 0
alarm readings: 30 - 999ppm
battery capacity display: full, ok, low, dead
sensor performance display: malfunction
alarm modes: sound, beep, hummer
light: red led flashing
installation: wall and table
power supply range: 110/220/230-240v ac
backup battery: 1 x 9v alkaline battery
working temperature: 0 - 60¡ãc
relative humidity: <98% rh
static current: <0.3ma
alarm current: <100ma

•the responding time of this co alarm fully comply with the usa ul2034 specifications regarding sensitivity:co level (ppm):70ppm
150ppm
400ppm
700ppm

responding time range:60-180 minutes
10-50 minutes
4-15 minutes
2-6 minutes


•the responding time of this co alarm fully comply with the en50291 specifications regarding sensitivity:co level (ppm):50ppm
100ppm
300ppm
400ppm




16.4*8.9*3.6cm