We've decided to scrap hardwired relays and sensors and go all wireless. I'm not sure if there's an RF module with cross compatibility between 433 mhz wireless outlets and Ciseco's RFU 328s or XRFs. I'd like to use all RFU 328s, but they'd be quite a bit more expensive to use for mains relays. Hopefully the slice of radio is capable of sending the outlet signals, but we ordered a smakn 433mhz kit as well.