WELOCK U81 Smart Lock Cylinder with Fingerprint, PIN & Key

1. 6 Ways to Unlock Unlock with a fingerprint, PIN code, RFID card, Bluetooth , WELOCK app, mechanical key, or Alexa (via WiFiBox3) for flexible keyless access at home, rentals, or the office. 2. Designed for Narrow Euro Profile Doors Fits compatible Euro-profile cylinder doors with door backsets from 25 mm, making installation possible where many smart cylinders won't fit. 3. Remote Control & Smart Home Pair with WiFiBox3 for remote unlocking, access records, notifications, and smart home integration with Home Assistant and Alexa. 4. Automatic Locking It automatically locks after closing with an adjustable 7–14 second delay for added everyday convenience. 5. Built for Everyday Use Powered by 4 AAA batteries with up to 12 months of battery life. Tested for 100,000 operating cycles and includes a low-battery reminder. Specifications