I need a 24VAC relay for my humidifier control project. I have a Sonoff SV connected to my oven and humidifier control panel, but in order for the fans to turn on at the same time, I needed a dual relay that could complete both the fan circuit and the humidifier circuit without bridging them. I had another relay laying around but when I plugged it in it just made a vibrating noise. After realizing it was a DC relay I had to buy an AC relay that would work. It turned out during my search for a relay. This relay worked great and served my purpose. An added bonus is that it comes in a nice plastic case which I can use to store some of my tiny electronic parts. It also came with a wire mount which I believe is for attaching the relay to the base of the fork. However, this mount is so thin that it's practically unusable. Since I had to place the relay along with my Sonoff SV I didn't want this wired mount to complete any circuitry. I ended up not installing the mount. The relay fits snugly into the base of the plug anyway, and since it's housed in the switch box it's really not necessary.