Secure and protect your home with a BurgProtect alarm and siren from BURG-WÄCHTER. Alarm and deterrent all-in-one, the siren 2151 can be installed inside or outside the home. Installation outdoors benefits from an additional visual deterrent to potential burglars who may see the alarm and avoid it. When a sensor within the BURGprotect range is triggered, the deafening 120 decibels Siren 2151 alarm is activated. The Siren 2151 is operated by a power supply but remains active even in the event of a power failure. The emergency power battery will take over from the power supply and ensure the house is secure and protected. The maximum runtime of the emergency battery is 20 hours. Power supply and emergency battery are included as standard. A microcontroller ensures the smart home alarm is tamper-proof.