i have a Milwaukee SMS122 controller without PH probe for sale.....it is about 2 years old but in like new condition and works perfect...i had it controlling the CO2 for my calcium reactor....i now have an Apex controlling it now so i no longer need this one....they sell for $120 new with Ph probe so i am asking $45 shipped since no PH probe comes with it......i have the original box and paper work but i cant seem to find it...maybe my wife knows where it is when she gets home.....
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