DNEXT Motion Sensor Alaram Lock for Home Padlock  (Black)

Features: Built-In Alarm Daily Water Resistance Great For Shed, Garage, Van, Gate, Bike, Motorcycle, Etc. Size: 3 X 1.5 X 4cm With 3 Keys Long-Lasting 6 X A76/Lr44 1.5v Batteries Included Note: To Use As An Ordinary Padlock Simply Insert Eh Shackle With The Groove Away From The Key Port If Using On Moving Vehicles Use As An Ordinary Padlock Until Stationary Then Alarm May Be Set Battery Replacement: To Replace The Batteries Remove The 2 Screws In The Shackle Holed Remove Cover And Replace The Batteries (6 X A76/Lr44 1.5v) Be Sure To Pay Attention To Polarity And That Cover Goes On Same Way It Came Off Batteries Should Last 2 Years Under Normal Operating Situations 6 Batteries Included