Bicycle Bike Motion Sensor Anti Theft Security Alarm Warning Annunciator Lock - Black. If your bike is moved, the alarm will spring into action and give off an ear-shattering shriek for 15 seconds. 3 sensitivity levels allow you to determine how much movement is needed to trigger the alarm.

Features:
1.4 digital code,only the user can unlock
2.Adopt micro-computer technique, have High-Middle-Lower sensitivity choose
3.Quiver trigged, security and sensitivity
4.Low power consumption to allow the battery a long life
5.Easy to installation and DIY
6.Waterproof: attach permanently to your bike without worrying about having to remove it in bad weather

Specifications:
1.Material: Plastic
2.Fit for: Bicycle motorcyle
3.Power supply: 1 x 6F22 9V battery (not included)
4.Dimensions: 10 * 6 * 3.5cm(approx)
5.Color: Black
6.Weight: 96g
7.Package weight: 110g
8.Package: Retail package (Pictures for reference only)

Packages Included:
1 x Bike Alarm Lock