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static state ：consumption <1.3W，alarm <1.7W
alarm density：LPG0.1%-0.5%，natural gas 0.1%-1%，city coal gas 0.1%-0.5%
work environment ： temperature-10℃- +50℃， humidity <90%RH
voltage：12VDC

alarm volume ：>70dB（1.5meters）
Reaction gas: coal gas, natural gas, liquid petroleum gas
Power supply:12VDC
Buzzer volume ≥7 0dB/m
Alarm density: 15%LEL
Resume density: 8%LEL
Working environment: :-10℃~+45℃ ，relative humidity≤90%RH
Stability: The alarm density error of long-term working ≤ ±5%LEL
Repeatability: The alarm density error of repeat testing
≤ ±5%LEL
The alarm density error ≤ ±5%LEL
Alarm way: Photic and phonic alarm, networking signal output
Consumption: <1.7W
Size: F107×38mm； weight：138g