Siren lock

Siren lock Lock Specifications: 1.Alarm sound: .110dB siren 2.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 Sensor 3.Lock body: .Dimensions10.6H*6.28(W)*2.83(D)CM, .Hardened Zinc alloy body .Corrosion Resistant .Weather resistant .Ice Spray Proof & resistant against salt and hard weather .Antimuffle design .Anti Drill .Anti bumper prevents scratching .Removable Alarm Module 4.Lock shackle: .Shackle diameter:φ10mm .Hot processed hardened Stainless steel .Anti twist shackle .Anti cut .Single side removable shackle 5.Lock battery: .Tamper proof batteries .12pcs of button batteries free of charge .Life time:12months under usual use 6.Lock keys: .Copper material keys .High security .More keys available 7.Advantages of this alarm lock: Anti muffle design, people can't use their hands or fingers to muffle the alarm sound. Single sideremovable shackle, you can leave the lock where it is if you don't want to close the lock.So it is not easy for people to lost their locks. Widely use, for motorcycles, bicycles, containers, trucks, garden shed etc. Can protect you from unnecessary lost.