Padlock Alarm Lock Siren for Door/Motor/Bicycle Lock

Product Features: Corrosion resistant, waterproof and durable Low power consumption. Low False Rate Built-in movement triggered an alarm, which can emit a loud sound when the lock is hit or shaken. Can be set to two states: mechanical lock and alarm. Adopts MCU core procedures, high-tech integrated circuit, and the digital sensor chip. Powered by six button batteries.