Combines locking function with alarming function. Built-in movement triggered alarm, which can emit loud sound when the lock is hit or shaken.;Adopts MCU core procedures, high-tech integrated circuit and digital sensor chip. Can be set to two states: mechanical lock and alarm.;Low false alarm rate. Low power consumption.;Can be used on door, window, bicycle, container, motor bike, tricycle, pull gate, garden, etc. Corrosion resistant, waterproof and durable to use.;Powered by six button batteries. Supplied with three keys, convenient to use.

• Andoer 120dB with 3 Keys Siren Alarm Lock Anti-Theft Security System Door Motor Bike Bicycle Padlock Black
• Black

Andoer 120dB with 3 Keys Siren Alarm Lock Anti-Theft Security System Door Motor Bike Bicycle Padlock Blackdouself