Get peace-of-mind with a high-tech security system designed just for Harley-Davidson motorcycles. Multiple sensors detect ignition tampering and contact with the bike. The system is all-electronic with no moving parts, and all sensors and circuits are vibration hardened to handle the requirements imposed by life on a motorcycle. Engineered using the latest circuit designs and components, the unit has ultra-low battery draw (.003 mA) and is weather resistant. Wiring is a snap with factory connectors which means there are no wires to cut. Battery back-up for siren on 100, 200 or 300. Sounds siren for up to 30 minutes even if power is cut.