Description: High quality metal material, stable and reliable. Built-in proimity card reader(125KHZ ASK modulation) and built-in keypad for PIN Code entry. Four open door modes: 4 digit Pin Code, 4 digit Pin Code & EM Card, 4 digit Pin Code & 4 digit Pin Code, EM Card & EM Card. Support 1000 standard users, can add card number and delete card number as your requirement. Perfect for home, factory, office, bank, community, ect. Specification: Material: Metal Size: 11.7x7.6x2.7cm/4.61x2.99x1.06inch Working voltage: DC 12V10% User Capacity: 1000 user card Card read distance: 5-15 cm Working temperature: -10 ~ 55 C Wide rel. humdity range : 20 to 90 % Unlock current: 1000mA Static current: 60mA Package Includes: 1 Piece Door Access Control Keypad 1 Piece User Manual Note: Due to the manual measurement and lighting effects, there is a slight difference between the size and color from the above and the actual item.