The K3 smart door lock adopts the full-automatic design. Compared with the traditional handle lock, it reduces the movable handle parts, and the appearance design is more complete and simple. The combination of biological fingerprint unlocking module and handle can realize the smooth operation of unlocking door in one step and effectively improve the use experience. All metal die casting cavity is made of high quality aviation aluminum material, which guarantees the product quality and quality.. The operation panel is made of glass with fine texture and can easily face a variety of outdoor environments. Biological fingerprint detection is located above the handle, which makes the operation more intuitive and convenient. In addition, K3 also provides password, chip card, mechanical key and Wi Fi Internet app to unlock, which is more advanced, intelligent and convenient.