Product description
1).Unit Size:107X44mm
2) .Alarm Density:
30ppm ,Alarms Not Activate Within 120minutes
50ppm, Alarms Within 60~90 minutes
100ppm, Alarms Within 10~40 minutes
300ppm, Alarms Within 3 minutes
3). Alarm Sound:≥85dB(3m)
4). Ambient Temperature: -10 to 50 degree
5). Ambient Humidity: ≤95%RH
6). Operation Voltage: DC 9V Battery