KingForce 3-in-1 Fingerprint Door Lock: Keyless Entry, Up to 22 User Code Unlock Previous page Auto-Locking Feature for Peace of Mind All-Weather Ally, Reliable in Any Condition With 4 AA batteries, it lasts for over a year Temporary power supply via C port One-Time Passwords for Enhanced Privacy Next page 1 AUTO LOCK 2 WEATHER RESISTANT 3 LOW BATTERY INDICATOR 4 SAFE & DURABLE 5 ONE TIME PIN CODE Front Door Lock Functional and Stylish Previous page Adjustable Latch: Fits 2-3/8" or 2-3/4" Easy installation with just a screwdriver Next page Smart Fingerprint Door Lock Showcase The video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked. I want to purchase this King Force lock for my new house front door, and what is the dimension of installation? The locks are designed to fit most doors, with a 2-1/8" (54mm) hole diameter, a backset of either 2-3/8" or 2-3/4" (60 or 70mm), a 1" (25mm) hole in the door edge, and a door thickness between 1-3/8" and 2" (35mm and 50mm). How many passwords can be programmed for this fingerprint door lock? KingForce locks offer versatile access options, allowing you to set up to 100 fingerprint unlock profiles, 20 passwords, a master password, and also provide the flexibility of a one-time access code. What kind of batteries ? How long do they last until you have to change the batteries out? To achieve a battery life of over a year, it is recommended to use 4 AA batteries. Discover Additional KingForce Door Lock Options Fingerprint Door Lock Add to Cart Smart Door Lock Add to Cart Smart Door Lock Buying Options Front Door Handle Set Add to Cart Smart Lock with Handle Add to Cart Smart Lock with Handle Add to Cart Customer Reviews 3.9 out of 5 stars 286 3.9 out of 5 stars 286 3.9 out of 5 stars 286 4.1 out of 5 stars 89 3.9 out of 5 stars 286 3.9 out of 5 stars 286 Price $69.99$69.99 $39.99$39.99 — $59.99$59.99 $89.99$89.99 $89.99$89.99 Unlock Methods Fingerprint, Password, Key Password & Key Password & Key Key Password & Key Password & Key Access Codes 22 22 22 / 22 22 Auto Lock & One Touch Lock ✔ ✔ ✔ ✘ ✔ ✔ One Time Pin Code ✔ ✔ ✔ ✘ ✔ ✔ Come with Handle ✘ ✘ ✘ ✔ ✔ ✔ Bore Hole Backset 2 ⅜” or 2 ¾” (60mm or 70 mm) 2 ⅜” or 2 ¾” (60mm or 70 mm) 2 ⅜” or 2 ¾” (60mm or 70 mm) 2 ⅜” or 2 ¾” (60mm or 70 mm) 2 ⅜” or 2 ¾” (60mm or 70 mm) 2 ⅜” or 2 ¾” (60mm or 70 mm) Door Thickness Range 1-3/8''-2'' (35mm-50mm) 1-3/8''-2'' (35mm-50mm) 1-3/8''-2'' (35mm-50mm) 1-3/8''-1-3/4'' (35mm-45mm) 1-3/8''-2'' (35mm-50mm) 1-3/8''-2'' (35mm-50mm)