The JA-111A bus external siren is designed to sound alarms and to signal activation and deactivation of PG outputs in the security system. The siren communicates with and is powered by the bus.
The JA-151A backed-up wireless outdoor siren is designed for alarm signaling, and PG output activation signalling.
The JA-163A RB siren is a component of the JABLOTRON 100 system. It is used to indicate alarms outdoors and for supplementary acoustic indication. The siren is powered by a lithium battery, completely without the need of any external power supply.
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