Requirements for Installation: Please note that the thickness of the lock body should not exceed 28mm. This distance is to that the lock body can sense the IC card and unlock smoothly. High Strength Material, Safeguards for Your Property. Check History Records: The history of the open/close record be displayed in the history records of the App, real-time monitoring of your property security. Reliable Fixation: The fixation of stickers and screws allows the lock body and buckle to fit more firmly to the cabinet door, ensuring safety of use. Ultra-long Battery Life: With a battery life of more than one year, there is no need to frequently replace batteries. This long-lasting not only improves the convenience of use, but also greatly reduces maintenance costs and troubles., Weight: 0.39242282636 Pounds, Manufacturer: Jaywool