Plastic Body Waterproof Siren Alarm Anti Theft Security Pad Lock with Smart Alarm Lock & 3 Keys (1 Set)Description :-Keep your bike, garage door, garden shed, side gate, tool box or locker, or anything you desire secure with this Heavy Duty Siren Alarm Padlock. This innovative U lock comes equipped with two settings, armed and unarmed, so you can be alerted by an alarm when the lock is tampered with, basically, double the protection. The Heavy Duty Siren Alarm Padlock has a body made of extra strong Plastic, waterproof.Sturdy & SecureThe Security Pad Lock keep it in a usable state even in harsh weather conditions. Further, the input materials also make this Security Pad Lock rainproof, weatherproof, corrosion-proof and rust-proof.Specification  Access Method: Keyed Alarm Type: Siren Material: Plastic Body Size: 70 mm Type: Siren Alarm Padlock Usage Directions  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. 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.) If in a minute without triggering, ed to the function. After the vibration, you can sound the three-Warning tone. Once stopped, the alarm will re-set after 35 seconds. Function: The system uses a piezoelectric buzzer, when the theft is leveraging or hitting or knocking the lock, The alarm will be issued immediately high-decibel alarm to drive the thief away.Dimension :-Volu. Weight (Gm) :- 231 Product Weight (Gm) :- 259 Ship Weight (Gm) :- 259 Length (Cm) :- 17 Breadth (Cm) :- 13 Height (Cm) :- 5  Read Less