YK-568 is a type of numeric access control keypad that supports touch-less card reading,supporting up to 500 users,suitable for out door installation,it adopts most advanced micro processor and Large-capacity memory chip,all settings can be saved in case of power failure,keypad is also easy to operate and programming,its a perfect choice as access control device for many environments like office,residences,workshops etc.This Keypad also use as Lift Metal Door Rfid Access Control System.