Signstek Keyless Entry Door Lock,Door Knob with Keypad,Smart Code Door Lock,Mute Mode,Passage Function

In installation, just use the existing knob lock hole, no need to open another holes. The keypad is backlite and waterproof, more convenient at Night. Very easy to operate, suitable for office, house and apartment. Exquisite appearance, rational structure, safe and reliable. International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions.