100% original authentic SPD201/O2 for you to choose the Oxygen Gas Alarm Detector SPD201/O2

Product Description

Oxygen Gas Alarm Detector SPD201/O2   

SPD201/O2 Gas detector of Oxygen
Measurement display: displays 4 digit LCD
Operation temperature: -10~40C (14~104F)
Storing temperature: 0~30C (32~86F)
Operation humidity: 0~99%RH (relative humidity)
Storing humidity: 20%~80% RH (relative humidity)
Measuring range: 0~25%(VOL)
Resolution: 0.1 %( VOL) 
Measurement error: +/-0.5%
Over measurement range display: --OL--
Alarming method: acousto-optic alarming
Working principle of the sensor: source cell sensor
The service life of the sensor: 2 years (it can then be replaced)
Power supply: 3x1.5V AAA alkaline batteries
Battery service life: about 100 hours of continuous use (when the backlight is off).
Size: 172x51x26 (mm)