QQ-Tech Creative Universal Alarm Padlock for Bicycle Motorcycle Door Gate Bike Shed Bolt Chain Lock 110db Siren Heavy Duty Security Alarm Lock (17mm Shackle, Black)
Keep your bike, garage door, garden shed, side gate, tool box or locker, or anything you desire secure with this Heavy Duty 110dB Siren Alarm Padlock.This innovative U lock comes equipped with two settings, armed and unarmed, so you can be alerted by a 105 - 110 db alarm when the lock is tampered with. Basically, double the protection. The Heavy Duty Siren Alarm Padlock has a body made of extra strong cast steel, high-grade steel shackle. Resistant corrosion, bad weather, physical destroy & Waterproof.USAGE DIRECTION:1. use the key to open the lock and pull out the lock pole, turn over 180 degree to insert into the lock hole, When hear the sound DU, the lock is coming into alarm situation, after 15 seconds, when the lock is vibrated again, it will give an alarm and keep alarm with serial movement or vibration. Each alarm will last 10 seconds.2. When hear the sound Ge. Ge. Ge.constant voice, the battery will be worn out,you need to replace the battery.(please pull out the lock pole, spin out the two screws inside the lock body, take away the cover and replace the battery, pls pay attention to the anode and cathode.)3.If in a minute without triggering, returned to the original function. After the vibration, you can sound the three- Warning tone.4.Once stopped the alarm will re-set after 35 seconds.Function: The system uses a  piezoelectric buzzer, when the theft are  leveraging or hitting or knocking the lock, The  alarm will be issued immediately high-decibel  alarm to drive the thief away.Setting mechanical lock: Insert  the key to open the lock rod then insert the  lock eye with negative direction that the  mechanical lock is ok (Mechanical lock body with  inner pressure side column + external pressure  cylinder lock.)