Effective alarm lining avenue types flammable gases as natural gas, propane, methane past, the laws butane. Can coupled directly to 12v or 230v by adapter included . Output lining connectivity of external siren or valve. Easy test and pause function. Part there indicates both normal condition, fejltilstand past, the laws alarm. Indicates fool alarm bowl replaced. Tested past, the laws approved, ce, one 50194-1:2009 Interchangeable battery: no Pause function: yes Alarm volume: 85 db 3 m Temperature area: -10 c 55 c Detektionsprincip: gas