1x4 digital door access security usb alarm system keypad B726

1.304# stainless steel keypad.

2.1X4 layout, Matrix design.4  function buttons.

1.Buttons layout could be customized as clients’ request.

2.With the exception of the telephone, the keyboard can also be designed for other purposes

3.Keypad signal can be RS232/RS485/matrix design

keypad mainly used for elevator and access control system