Proximity card readers type KDH-C110U can be installed inside or outdoors. They have housing made of ABS plastic. Readers are designed to work with controllers with Wiegand interface. The devices reads the card Unique (125 kHz). Switchable Wiegand format makes this product universal for various installations. The range of the proximi-ty card reading is from 2 to 10 cm depend of the model and type of card.