Multiple ways to unlock the door: Never forget your key again- simply open your door by fingerprint, with RFID card or with WELOCK app. Memory for up to 100 fingerprints (3 with admin function). Up to 20 cards can be paired. Apps for iOS and Android are available:WELOCK, via extra WIFIBOX3 for remote control.

Electronic lock cylinder size: Diameter of knobs: outer 46mm / inner 38mm; length: outer 56mm / inner 57mm. Cylinder length: adjustable outside 40mm - 55mm / inside 30mm - 60mm. Suitable for most all euro profile doors with a thickness between 50mm-100mm.

OLED display of battery status: settings and alerts. Battery for electronic knob: 3 x AAA 1.5 V. Ten times unlocking per day will last for 8-10 months.When the battery is empty, you can use the USB backup to unlock. The USB power bank is for unlocking and can not be charged.

Safety and environment of use: Electrostatic protection up to 30,000 volts. With an IP65 waterproof rating, Smart Lock is ready to protect homes in any location. (Only suitable for doors with roofing, not for garden gate exterior doors).Safety in case of fire, etc.Can always be opened from the inside. Up to 10 million closing operations. Working temperature: -30°C to 60 °C.