| nina(at)alertech(dot)hk
1.Model:AHG-42.Semiconductor sensor3.Operating voltage: 85-265V AC; Wall mounted;4.Alarm output: Sound& LED Flash alarm;5.Alarm level: 10% ±5% LEL.6.High Reliability sensor7.MCU processing adopted,SMT adopted,good stability8.Malfunction auto-check indicator9.9V ordinary alkaline backup battery or 9V chargable back up battery optional10.Dimension: 118.5*82*43mm .11.Execute criterion:GB15322;EN50194;UL1484
Accessories optional:Solenoid valve, Exhaust fan9V ordinary alkaline backup battery or 9V chargable back up battery optional |