"Semiconductor sensor
Operating voltage: 85-265V AC;
Alarm output: Sound& LED Flash alarm;
Alarm level: 10% ±5% LEL.
MCU processing adopted,SMT adopted,good stability
Malfunction auto-check indicator
Dimension: 118.5*82*43mm .
Execute criterion:GB15322;EN50194;UL1484
Drivable accessaries: electromagnetic valve and exhaust fan;
Can make 9V chargable back up battery "
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