The FMR15104 receiver gives you four relay outputs with a contact rating of 8 amps at 240VAC. The relay mode can be set to momentary or latching.

The user can select 8 different narrow band frequencies and program unlimited number of transmitters to the receiver. With a narrow band FM 151MHz signal from the transmitter a line of sight operating range of 5000 metres is possible. The receiver uses a crystal oscillator circuit that ensures high frequency stability allowing optimal performance in the receiving range.