Description: Brand new and high quality 2000 users, Supports Card, PIN, Card + PIN Waterproof, conforms to IP68. Support external card reader (password reader support.), Tamper alarm function and anti connect the wrong line protection Material: Metal, Operating Voltage: DC6V-24V Size: Approx. 91x91x20mm/3.58x3.58x0.79inch Package Includes: 1 Piece Metal Access Control 2 Piece User Manual 3 Piece Screw 2 Piece Expansion Tube Note: Since the size above is measured by hand, the size of the actual item could be slightly different from the size above. Due to the lighting effects, monitor settings, etc. There could be some slight difference in the color tone of the pictures and the actual item