Fingerprint Door Lock,Keyless Entry Bedroom Door Lock with Handle,Biometric Door Handle Lock,Bedroom Fingerprint Smart Door Lock Knob for Bedrooms Doors/Storage/Office/Garage/AirBnB/Hotels(Black)

Colnic Fingerprint Door Lock Humanized design, high quality, strong and durable, The fingerprint recognition rate is more than 99%, only needs 0.3s, you can easily unlock with your fingerprint, In addition, it can also be unlocked with a mechanical key when batteries die suddenly or any other situations, which leads a smart, simple and convenient lifestyle for you and your family. USA Standard Size Fingerprint Lock Fits Most Doors Applicable Door Thickness: 1.38in(35mm) - 2.16in(55mm) Applicable Door Hole Diameter: 1.96in - 2.36in Adjustable Latch: 2.36in(60mm) - 2.75in(70mm) Mode Switching Button Turn on the auto-lock mode: just verify with one recorded fingerprint, then will activate the auto-lock mode automatically; Turn on the normally-open mode: just press on the Mode Switching Button for 1s, pink light flash, then release the button, green light on, you will successfully turn on the normally-open mode. Low Power Consumption Smart Door Lock Powered by 4 AAA batteries(not included), our fingerprint door lock can achieve the possibility of Low Power Consumption, lasting the batteries for a long use for 8-10 months, there will be a red light low batteries alert when your batteries are about to run out, pls remember to change the batteries in time. USB Emergency Power Supply Our biometric door lock is powered by 4 AAA batteries, take into account the emergent situation, our door lock also can be charged by USB for emergency power supply when batteries run out, but pls note that USB can not charge the batteries, In the case of no power of batteries, the usb is charged to provide emergency power, and there is no power supply without the usb door lock.