offer gas detector GS832B

Power: AC110240V 50Hz 60Hz Alarm volume : 85db30cm Alarm pattern: BI 0.5s--pause 0.5s repeat this pattern Operating condition : Operating Temperature : -10 50 Ambient Humidity : 10 90 RH Power Consumption : 3 W Detection gas type(optional) : Butane Propane city gas Methane hydrogen ammonia Alarm sensitivity : 10 LEL Output signal(optional) : Wireless without signal output