Sirena cu acumulatori este utila in cazul in care hotul va taia alimentarea sirenei, sirena cu back-up va continua sa sune.

Boost the security of your install with this optional Back-up Battery Siren, which will continue to sound even if would-be thieves are able to locate and silence your primary siren. Should be installed in a different part of the vehicle from the primary – please discuss optimal locations with your installer.