Item Type: Access Control Material: ABS Size : Approx. 115 x 75 x 17mm/4.5 x 3.0 x 0.7in Frequency: 125 KHZ Storage Capacity: 2000 Users Operating Voltage: 12 - 24V DC Operating Current: 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. 1There are multiple ways to open the door, including mobile APP, password, card unclock and combination of password and card unclock to open thedoor. 2This is a noncontact proximity card password access control allinone machine, which is one of the single door controllers at present. And can be connected to a wired doorbell(not includ wired doorbell). 3Adopting unique material design, equipped with durable backlit keyboard, builtin American for Atmel microprocessor, builtin card reader to support 125KHZ EM card, large capacity for 2000 users. 4It has strong antiinterference ability, high safety and reliability, powerful functions, and easy to use. It can be widely used in highend office buildings, residential quarters and other public places. 5Multifunction machine, WG26/34 output and input, equipped with luminous keyboard, more convenient operation at night, and more flexible use oftouch keys. 6There is an independent password, and the user can modify the password by himself. After the card is lost, use the keyboard to delete the card number, which can completely eliminate security risks.