Near Intersection of I-35 & I-90 Southern Mn. | After seeing the above link on Amazon, I think either model could work for you.
I had not seen a model where the individual relays were separate. The multiple units I had seen had all the relays in one enclosure which was fine if the devices you want to control are close together. With the model with individual receivers, it would be possible to have them mounted close to each valve. With the style where the relays are all on the same board some extra wire might be involved . Actually it might be better to mount the receiver(s) somewhat away from the valves to lessen the chance of corrosion due to the product you are using.
I would suggest mounting the receiver(s) in enclosures for protection but drilling a small hole in the enclosure so the coiled antenna extends out of the enclosure. I straightened the coil out in an install in my shed. It worked fine but was triggered by some other interference at times. I tried another receiver but left the antenna wire coiled up as shipped which eliminated the false triggering. I suspect my false triggering was due to some other electrical interference in my shed. I suggest leaving the antenna coiled up as you would not want the remote system to "take over" while actually spraying.
Notice these can be programmed as toggle or momentary as I mention above. This unit appears to have decent programming instructions.
The receiver could be a Wi-Fi access point device such as an ESP32. Then the booms could be controlled with a phone rather than a dedicated remote. The advantage might be that the phone is available and charged. With a separate FOB style, the FOB might need a new battery or get misplaced.
Edited by tedbear 2/18/2025 09:40
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Remote spray section tester
