Features:
Privacy Passw-ord Input & Safe Design: enable to unlock the door even when you adding any numbers before/after the correct passw-ord. and the smart keybo-ard is designed with traceless keys, thus prevent the passw-ord known by others.
User Management Capacity: the electronic lock is capable of storing up 10 access codes, 1 manager passw-ord + 1 passage passw-ord + 8 user passw-ords.
Low Power Consumption: the inner bat-ter-y compartment and the backup bat-ter-y pack are both powered by 4pcs 1.5V AAA ba-tter-ies (NOT included), and with less than 20μA static current, they can last more than one year, and it will make a continuous beep sounds to remind you when in low voltage.
Backlight 12-key Keypad: low brightness backlit keybo-ard makes it easy and convenient to use at night.
Reliable Quality: fine casting, modern appearance, waterproof seals protecting electronic components.
Simple & Easy Installation: adopts with standard single spring bolt and equipped with installation accessories and instructions, quick to install the digital door lock. Fit for Various Doors with thickness between 35mm-60mm.
Voice Prompt: with voice prompt function, the design is more humanized.
Reset Function: press and hold the reset Bu-tton for five seconds and the master code with return to the manufacturer default code "0123".
Wide Application: great for home, office, hotel, apartment, restaurant, dormitory, etc.

Specifications:
Color: Black / Silver (Optional)
Material: Zinc alloy
pow-er sup-ply: 4 * AAA 1.5V ba-tte-ry (NOT Included)
Static Current: ≤20μA
Static Withstand Voltage: ≥15KV
Door Thickness: 35-65mm
Lock Bar Distance: 60-70mm
Lock Bar Thickness: 20mm
Item Weight: 1050g / 2.31lb
Item Size: 185 * 110 * 80mm / 7.28 * 4.33 * 3.15in
Package Size: 22.2 * 14 * 9.5cm / 8.74 * 5.51 * 3.74in
Package Weight: 1221g / 2.69lb