HARFO Electronic Touchscreen keyless Door Lock, High-sensitivity Keypad, Password + Mechanical Key, Perfect for Home & office [New Version]

Description

Gentle hint Need to drill hole while the lock is installed. Working Voltage: 4*AA Alkaline battery(NOT included) Optimal working Temperature: -20℃~80℃ Optimal working Humidity: 50%~93% Alarming Voltage: 5V Unlock way: password + mechanical key Password Length: 6 digits password Users: 20 Adjustable latch: 2-3/8-Inch (60mm)--2-3/4 inch(70mm), fits door thickness of 1-3/8 in(35mm) to 1-3/4 in(45mm). Mechanical key: 2