This device “listens” for transmissions from the Wireless Multiplexer or Single Door Transmitter.  When it receives a transmission it sends the data to the computer.

The 16 Door, wireless Multiplexer “monitors” up to 16 different doors.  When a door is opened or closed ( a change of state occurs), the device transmits a message to the Alarm System Receiver.

The heart of the Security  System is the Keypad Gate Access Controller.  This device features a built in Speaker/Microphone. And a backlit Touchpad having both Tactile and Audible feedback to the user.  Internal relays connect to a gate or elevator providing control of these devices or others you might be interested in.