Brand

 SMART SENSOR

Model number:

 ST8900

 Operation current

 230mA

 Operation voltage

 3.7V

 Battery type(include)

 BL-9C

Plug type

EU Plug 220V, US Plug 110V (Optional)

 Operation humidity

 15%-95%

 Storage temperature

 0-40℃

 Dimension

 75*138*43 MM

 Short circuit current

 ≤3A

 Maximum open circult voltage

 ≤4.2V

 Display Type

 Segment type LCD

 Operation temperature

 -10℃-50℃

 Weight

 753/26.6oz

 Battery working runtime

 6 hours(no alarm)

 Detection Gas

 Carbon Monoxide(CO, Hydrogen Sulfide(H2S), Oxygen(O2), Combustible Gas(LEL)

 Resolution

 CO: 1ppm, H2S: 1ppm, O2: 0.1%VOL, LEL: 1%LEL

Measuring range

0-999pm(Carbon Monoxide)

Measuring range

0-500ppm(Hydrogen Sulfide)

Measuring range

 0-30%(Oxygen)

Measuring range

0-100%(LEL)

 Warm up time

 < 20 Seconds