12V Battery Backup Siren for Car Alarm 120dB. (+) and (-) trigger

High quality (small size) battery backup siren adds more security to your alarm system with Single Tone. 
The built in rechargeable batteries make sure the siren keeps sounding even if all the wires are cut or the cars battery is disconnected!

 Main Features:  

• Universal fitting: It will fit any road vehicles
• Loud 120dB 12v Siren
• Compatible with most major car alarms and Rightclick alarms
• Keeps sounding even if all the wires are cut
• Includes override keys
• Dimensions (approx): 75 x 55 x 80 mm
• Quality Products at fantastic prices!

Connections:
Red: Constant Positive
Black: Ground
White: Positive trigger from alarm  OR  Blue: Negative trigger from alarm

 Package Contents: 

• 12V Battery Backup SIREN + override keys
• Includes Mounting Bracket.