Ok understand now...ph, orp, and temp are the only monitored parameters. Must have missed that in the documentation. Wanted to monitor the the light cycles.....dosing pump on and off times. But now that I think about that it realy isnt that important. The circut is open or closed. Except for the lag in the ph. Ok thanks for your time. Like the AC3, still playing with it. Finally got the wild ph swings under control.
Charlie