CPC Subgroup
G08B 17/10 Actuation by presence of smoke or gases
Full Title
Fire alarms; Alarms responsive to explosion > Actuation by presence of smoke or gases
3 direct subcodes
Child Classifications
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- G08B 17/103 using a light emitting and receiving device
- G08B 17/11 using an ionisation chamber for detecting smoke or gas
- G08B 17/117 by using a detection device for specific gases, e.g. combustion products, produced by the fire (G08B17/103, G08B17/11 take precedence)