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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:
.Dimensions:5.5(H)*5.0(W)*2.4(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:φ7.5mm 
.Hot processed hardened Stainless steel

.Anti twist shackle

.Anti cut

.Single sides removable shackle

Packaging & Shipping

1.Lock battery:

.Tamper proof batteries 
.12pcs of button batteries free of charge

.Life time:12months under usual use

2.Lock keys:

.Copper material keys

.High security

.More keys available

Advantages of this alarm lock:

Smaller size lock body,  thinner diameter of lock shackle, use for smaller lock holes.

Single removable shackle, you can just leave the lock where you want to lock, not easy to get lost.

Widely use, for motorcycles, bicycles, containers, trucks, garden shed etc. Can protect you from unnecessary lost.