Features: 1.Unique design, with high security and reliability, high receiving sensibility, low working current. 2.Durable backlight keyboard, easy to use at night, low power consumption, standby current is less than 30mA. 3.Adopt for Atmel microprocessor built?in, strong anti?interference capability, support Wiegand26/34 input and output. 4.With doorbell port, can install wired outside doorbell, the doorbell is not included in our package. 5.Users can modify password freely, ID card number can be deleted when lost, secure your account. 6.Support three ways to unlock door: password, ID card and ID card+password. Specification: Condition: 100% Brand New_x000D_ Item Type: Access Control Systerm Machine_x000D_ Color: As Pictures Shown_x000D_ Material: ABS Plastic_x000D_ Storage Capacity: 2000 Cards_x000D_ Working Fruquency: 125 (Khz)_x000D_ Induction Method: Password, ID Card_x000D_ Working Voltage: DC 12-24V_x000D_ Working Current: 30mA_x000D_ Card Reading Distance: Approx. 2-6cm/0.8-2.4in_x000D_ Electric Lock Output: 3A_x000D_ Time To Lock: 0-99 Seconds_x000D_ Environment Temperature: -40-60_x000D_ Environment Humidity: 10%-90% PackageList: 1 xAccess Control Systerm Machine1 x Mounting Screw Pack1 x Connection Cable1 x Discription Note: Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.