Milwaukee® Smart pH/ORP Monitor and Controller

Note: Monitor no longer available. Replacement probes still available while supplies last.

This monitor and controller will read pH and ORP changes in your tank water and will maintain user-determined values! All you need to do is attach two solenoid valves or metering pumps to the sockets supplied in order to dose CO2 and ozone. 

Easily adjust both set points using knobs on the face of the unit. If the pH rises above or the ORP value drops below the respective set point, then a visual alarm activates while the out-of-range condition lasts. 

Includes a 115V/60 Hz to 12VDC adapter. Measures 3 1/4" x 5 1/2" x 1 1/2". Two-year warranty on the base unit, six-months on the probes. Ship weight is 2.5 lbs.

Reading: 0–14 pH, ±1,000 mV (ORP)
Set Point Range: 5.5–9.5 pH, 0–600 mV
Resolution: .1 pH, 1 mV
Accuracy: ±2% of Reading

Milwaukee® Smart pH/ORP Monitor and Controller

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Part No.Product NameShippingIn StockPriceQuantity
SM125 pH/ORP Monitor & Controller Out of Stock
Still available for ordering
$217.00  
SM911 Replacement pH Probe In Stock $42.00  
SM921 Replacement ORP Probe Out of Stock
Still available for ordering
$45.00  
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