Superheterodyne single conversion receiver with 2x24VA relays. Programming of transmitters can be carried out either directly on the receiver using the 2 push buttons, or remotely using the buttons of the transmitter. General parameters of the receiver (relay, time, etc.) can only be done using the 2 push buttons of the receiver. All programming steps are displayed on the backlit LCD display. The internal data can be saved/restored to/from an external memory.