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. 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. 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. 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., Manufacturer: Koolenry