Feature: 1. It can be adopted on small cabinets such as sauna cabinets, storage cabinets, filing cabinets, desks, etc. 2. In case of emergency, the smart code lock supports external power emergency unlock function. 3. One-time password and long-term password can be set to meet different usage requirements. 4. The panel is made of stainless steel, which is sturdy and durable, and the external plexiglass can play a good waterproof and anti-fog effect. 5. It has automatic rebound function, after opening the door with a card, it automatically springs back to prevent illegal card insertion. 6. This smart lock is designed with ultra-low static power consumption, so the battery life is very long. Specifications: Item Type: Smart Password Lock Material: Stainless Steel Panel Size: Approx. 7.7 x 5.6cm / 3.0 x 2.2in Gross Weight: Approx. 267g/9.4oz Battery parameters: 4 AAA batteries (not included) Door opening method: password External power supply: support Alarm voltage: 4.8V Applicable temperature: -30- 80 Applicable humidity: 95% RH Static power consumption: 15W Dynamic power consumption: 120W Password types: fixed password and temporary password Package list: 1 x panel 1 x bolt 1 x bag of accessories (14 pieces) 1 x English manual