Còi và đèn báo cháy Siemens AS & AH

Notification appliances are Siemens Series ‘AS’ Audible Horn | Strobe appliances and Series ‘AH’ Audible Horn appliances or approved equals

Series ‘AS’ Audible Horn | Strobes are listed for
(Emergency Devices for the Hearing-Impaired for Indoor Fire Protection Service) UL Standard 1971

Series ‘AH’ Audible Horns are UL Listed under Standard 464 (Fire Protective Signaling)