Standard - 4 AA batteries. Emergency - 9V Battery (6LF22). Battery Life : About 10 Months (10 Times per Day). Door Thickness : 4 5 cm (1.57 1.96 inch). Outer Body - 6.7 x 15.7 x 1.6 cm (2.63 x 6.18 x 0.65 inch).
Inner Body - 15.8 x 8.9 x 4.5 cm (6.22 x 3.50 x 1.75 inch). The item "SAMSUNG SHS-2920 Keyless Touch Digital Smart Door Lock w 2 Key Tags Entry System" is in sale since Wednesday, October 23, 2019.This item is in the category "Home & Garden\Home Improvement\Building & Hardware\Doors & Door Hardware\Entry Door Lock Sets".bay" and is located in Seoul, Korea. This item can be shipped worldwide.