This start relay works great for what it's designed to do, start the pump. After wiring this start relay after an on/off switch the relay will still "click" on, but the pump will not run unless the on/off switch is in the on position. It will work with multiple timers, you just need to run wires to both pump terminals, one wire from the 24 volt out to the pump terminal, the other to the 'white common' terminal in the multiple zone timers. I currently run 2 twelve station timers. The only issue I have is needing to keep the box out of direct sunlight; I built a sun shield around the timer. Although there are boxes commercially available to place the relay starter in.
Pump Start box did not have hole ports on all four sides. This would cause me to drill holes in sides that didn't have ports allowing me to turn the box on its side to adapt to the configuration of the one I was replacing. It was also too large for the area it was being mounted. The Poor rating was because it didn't have the ability to rotate the box to adapt to the existing box location. Also the relay inside was not built to the quality of the unit that it was replacing.
Installed in minutes, works as it should, plus it was in stock locally, had a great price, and the product was nicely designed! The wires are marked making installation easy for just about anyone, several knock-outs making it very easy to locate, or replace a burned out relay.
Just installed relay box along with Orbit Digital Timer. Everything needed to install the relay is included (screws and wire nuts). Cables are marked well and instructions are easy to understand. It works !