1.Access by tuya App, Fingerprint, Pass code, medical key 2. Compatible with various mortise to fit 99% doors.single latch60/70, European 5050/ 6050 / 3585/ 4585/ 6085/ 6072 / 5572 3. Unique stylish thin panel, 255x65mm, it can be fit most of the wooden, sliding doors. 4. One-Touch-Access Biometric Fingerprint sensor on the reader.Fingerprint scanner will wake automatically once you place your finger on it and is conveniently positioned to accompany your natural hand position.One seamless action allows you to wake the lock, read your fingerprint, and unlock your door.The whole unlock action takes only 1 second. It can auto relock your door for you so your home is always safe. 5.Strong and secure Aluminum alloy lock panel, Anti-corrosion and study. Unlock method: tuya bluetooth App, Passcode, Fingerprint,medical key App name: tuya smart life app Batteries life: 10000 times normal open( 12 months) A smart home doesn't just make life easier, it makes it better With AES 256 encryption, the security level of your home is beefed up. Figuring out if you're being watched isn't a problem too. Thanks to the virtual password function, you can input a fake password strung before and after your real password which can be typed in the middle of the gibberish. If you live with kids, the biometric smart door lock helps to make your job much easier. The steady track record of who is in or out lets you know when they are at home, if they are out, and who they went out with. Furthermore, with parental control features, your kids can use the app to open and close the doors at your request. Back-up USB external power supply interface, in case the power is dead. Reversible free style handle. Waterproof rubber design, which is good for outside door Colour:Black Material:aluminum alloy Package Contents: 1 x Fingerprint Lock Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.