Elloapic Universal Alarm Padlock 110db Siren Heavy Duty Security Alarm Lock for Bicycle Motorcycle Door Gate Bike Shed Bolt Chain Lock

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.