External siren, including AKU
It is a backed-up siren with in-built NiCd accumulator. All siren functions are managed by a microprocessor.
OS-360 is equipped by piezoelectric converter.
OS-365 is equipped by electro-dynamic converter. It is used in residential areas or family houses.
Siren is equipped by a pair of sabotage contacts for detection of siren and its cover dismounting. Inside the siren, there is a powerful flasher ensuring good localization or active siren. Its body is manufactured from mechanically resistive plastic with high color stability and resistance against UV radiation and weather. Resistance of electronic parts against humidity is ensured by doubled coating of PCB. Sealed reed contacts are used as sabotage contacts.
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