External receiver 230 VAC 12 / 24VDC / AC for 400 users working on 433 and 868 MHz, with 1 channel. The RN42 Receiver leaves the factory working on the MUTANcode™ system, being compatible with existing programmers. If you want it to work in MUTAN-II™ mode with the additional advantages that this implies, you must enter an installation key with one of the available programmers of the MUTAN-II™ family.