Alarm Disc Brake Lock

Audible Alarm: 110dB alarm sound. Six batteries provide adequate power for the lock which can last over 8 months.

Waterproof and Durable: The durable aluminum alloy body and sprayed surface perfectly prevent water and rust.
Easy to Use: Just Press the lock cylinder instead of other complex operations.

Two keys are included, one for use and the other for spare. 1 x Allen wrench helps you to change batteries.