Siren padlock, 1.110db alarm,alarm underwater,waterproof 2.Anti-muffle designed padlock 3.Anticut hardened shackle 4.CE&RoHS Siren padlock Lock Specifications:1.Alarm sound:.110dB siren2.Alarm system.Alarm under water, waterproof .Auto-alarming system & locking system .Can be used alarmed or without alarm .Three tone alarm .Automatic reset.Dual Shock & Movement Sensor3.Lock body:. Specification: ...