Juan, I'll buy your unit if you can sell me on its value. I was going to get an RKL with SL1 and NET off someone but they said the NET is impossible to set up and RK pH monitoring is "worthless" (Not sure if they referred to their probes or what)...
My need for a controller is to (1) Time lights, (2) Monitor pH, Temp, (3) send me notifications if something weird happens, and (4) prevent weird things from happening (like ATO or heater stuck on) using basic conditional logic.