Battery Back-Up Siren

The Battery Back-up Siren is designed to suppliment any DYNATRON Alarm/Immobilser. It features on board nickel cadmium rechargeable batteries that get trickle charged off the cars charging system. This means that even if power it cut from the vehicle or the siren wires are cut the siren will always sound. 

The siren comes complete with two keys to turn the siren off.

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