Technical 
(1)Detecting gas: LPG,natural gas, and coal gas
(2)Power supply: AC110V~220V
(3)Power frequency: 50/60Hz
(4)Rated load: <2W
(5)Alarm thickness: LPG: 0.1~ 0.5%; natural gas: 0.1~ 0.3%; coal gas 0.1~ 0.5%
(6)Alarm volume:≥85dB
(7)Working environment: -10~40degree, relative humidity <97%RH 
 
Product Features
 
High stability sensor
Automatic breakdown-checking function
SMT design
Can be used to detect natural gas ,coal gas and LPG.
Auto reset
Microprocessor adopted
Three indicators: POWER, STATE, ALARM