nina(at)alertech(dot)hk
Model:AHC-2
Japan NEMOTO electrochemical sensor;2.Operating voltage: 120/230V AC(can support 9V back up battery); Wall mounted;3.Alarm output: Sound&Flash alarm;4.Alarm level: >400PPM CO between 4-15 minutes;>150PPM CO between 10-50 minutes;>70PPM CO between 60-240 minutes;5.Drivable accessaries: electromagnetic valve & exhaust fan;6.High Reliability sensor;7.MCU processing adopted,SMT adopted,good stability8.Malfunction auto-check indicator9.Dimension: 118.5*82*43mm .10.Execute criterion:GB15322;EN50291;UL2034
9V ordinary alkaline backup battery or 9V chargeable back up battery optional