Also, my opinion has changed a bit these days on the PP v Milwaukee. For what we do, I think the Milwaukee works Great. The probe is cheap, so run it until its starts to go wacky, toss it and get a decent probe. To me, buying a decent probe comes with the decision to buy the Milwaukee. Sure, use the original, but get ready to toss it and get a decent probe.
Seems the PP probes are a bit better. Not necessarily Great, but better. Yet again, run'em, toss'em and get a decent probe.....
But overall my opinion of the Milwaukee pH Controllers (excluding the probe) has come way up!