Check History Records: The open/close history is displayed in the app's history records, enabling real-time monitoring of your property security. Requirements for Installation: The lock body thickness should not exceed 28mm to ensure proper sensing of the IC card and smooth unlocking. Reliable Fixation: Adhesive stickers and screws provide secure attachment, ensuring the lock body and buckle fit firmly to the cabinet door for safe use. High Strength Material: Durable construction provides protection for your belongings. Ultra-long Battery Life: Battery lasts over one year, reducing the need for frequent replacements, improving convenience, and lowering maintenance costs. Smart Cabinet Door Lock Unlock with IC Card Unlock with NFC Wide Range of Applicable Scenes Remote Unlock via App Supported Unlocking Methods: Mobile Phone Bluetooth, Card Number of Users Supported: Up to 250 card users Local Management Function: Supported Compatible App: Available for download Power Supply: 4x AAA alkaline batteries (not included) Working Current: Less than 50mA Working Temperature: -20°C to 60°C Relative Humidity: 20% to 85% (non-condensing) Antistatic Ability (ESD): Contact discharge 8KV, Non-contact discharge 15KV Recommended Use Scenarios: Wardrobe, bedside table, shoe cabinet, drawer, etc. Notice: 1. 4x AAA batteries are not included; please purchase separately. 2. When the battery is depleted, the cabinet door lock remains unlocked; replace the battery promptly. Note: A Bluetooth gateway is required (sold separately). Color: Black Material: Plastic + Metal Package Contents: 1 x Bluetooth Lock Note: Light reflection and display differences may cause slight color variation between image and actual item. Measurement error allowed within +/- 1-3 cm.