R1 includes the Wireless Reader and Receiver, it's 433MHz Rolling code communication between the reader and receiver, and the receiver can be connected to any 3rd party Wiegand controller.

R1 includes the Wireless Reader and Receiver, it's 433MHz Rolling code communication between the reader and receiver, and the receiver can be connected to any 3rd party Wiegand controller.

WK1 is a Wireless Keypad reads PIN only, including the Wireless Keypad and Receiver, it's 433MHz Rolling code communication between the keypad and receiver, and the receiver can be connected to any 3rd party Wiegand controller.

WK2 is a Metal & Waterproof Wireless Keypad & EM Card Reader , including the Wireless Keypad and Receiver, it's 433MHz Rolling code communication between the keypad and receiver, and the receiver can be connected to any 3rd party Wiegand controller.