Question about a low cost device for wireless control of 3 230V contactors in a house.

Question about wireless control of contactors. I need some kind of device that would control the switching of 3 contactors separately (transmit a signal) so as not to pull cables through the whole house. On one side is a low power contactor which would, by its closing, switch on the contactor of a 230v circuit in the other part of the house. I have found something like the RNM-10 from Zamel, but it comes out very expensive buying 3 additional receivers. Is there something much cheaper available on the market? I apologize in advance if I have messed up the question.

Look for Sonof, Tuya, Supla 4 channel.