Fingerprint Door Lock- Smart Door knob,biometric Door Lockwith passcode keypad keyless Entry Door Handlefor Bedroom Home Hotel Office Apartment (Black with APP)

4-IN-1Fingerprint bedroom door lock: fingerprint + password + 2 mechanical keys + APP control, 0.3 s recognition, 1s to open the door, 100 fingerprints and 50 passwords can be added. Upgraded large fingerprint sensorThe new 160*160DIP sensor has a 35% larger recognition area than the old 120*120 sensor, making recognition more accurate and stable. USB emergency chargingThe fingerprint door knob has a low battery alarm function and comes with a USB port for emergency charging. Requires 4 AAA batteries (not included). Easy installationSuitable for left and right doors. The bedroom smart door lock is designed to fit US standard doors with back panel sizes of 2-3/8 inches (60mm) and 2-1/8 inches (70mm), and door thicknesses from 1-1/8 inches to 2"-1/8" (30mm-55mm)