1、Four Ways to Unlock: Password + RF card + remote control + mechanical key. 2、Reversible Handle Design: Suitable for both right‑handed door and left‑handed doors. 3、Fit for Various Doors: Door thickness between 35mm-60mm. 4、Backlight 12-key Keypad: Makes it easy and convenient to use at night. 5、Wide Applications: Great for home, office, hotel, apartment, restaurant, dormitory, etc. Description: The electronic code door lock is suitable for both right-handed door and left-handed doors. Fit for both right-handed door and left-handed doors. Features: Four Ways to Unlock: Password + RF card + remote control(not included) + mechanical key. Reversible Handle Design: Suitable for both right-handed door and left-handed doors. Fit for Various Doors: Door thickness between 35mm-60mm. Hidden Key Hole: Designed with hidden mechanical key hole, great for emergency use. Simple and Easy Installation: Equipped with installation accessories, quick to install. Backlight 12-key Keypad: Makes it easy and convenient to use at night. Automatic Locking: For each valid entry, lock will automatically lock in 5 seconds. Low Voltage Indication: the keypad light will flash to remind you to replace the battery. Reset Function: Press and hold the reset button and recover to default parameters. Wide Applications: Great for home, office, hotel, apartment, restaurant, dormitory, etc. Specification: Color: Silver Material: Zinc Alloy Power: 4 x AA 1.5V batteries(Not included) Static Current: <20μA Working Current: <200mA Low Voltage Indication: < 4.8V Latch: Approx. 60mm / 2.36in Door Thickness: 35-60mm Card Type: EM4100 Card(125KHz) Working Temperature: -25~60°C Relative Humidity: 20%-95% Size: Approx. 160 x 68 x 36mm / 6.3  x  2.67 x 1.4inch (appr.) Packaged included: 2 x Lock Body1 x Bolt1 x Lock Catch1 x Lock Box2 x Cards2 x Keys2 x Rubber Pad1 x User Manual Note:Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.