Overview: Traditional chains, padlocks & U Locks only do half a job & can be pretty easily removed by those who know how, but even the sight of this alarm will have even the most determined of thieves thinking twice. If your bike is moved, the alarm will spring into action & give off an ear-shattering shriek for 15 seconds. No thief will want to hang around when this alarm goes off. 3 sensitivity levels allow you to determine how much movement is needed to trigger the alarm. When triggered alarm had already sounded for 5 times, If triggered again within 5 seconds, it will sound continuously for 15 seconds. I'm sure sopowerful function must can protect your bicycle effectively.
Details: Waterproof: attach permanently to your bike without worrying about having to remove it in bad weather
Material: Sturdy black plastic
- no metal parts to rust Fit for: Bicycle Power supply: 1 6F22 9V battery (No include) Dimensions: 100 60 35mm
Colour: Black Weight: 56g Package Includeing:1 Bicycle alarm 3 screws 2 capnut 1 Use Instruction Package dimension: 110 55 75mm Package weight: 120g Specification:100 X 60 X 35