Aqua Master Tools P50 Pro2 pH & Temperature Pen Meter

An updated, waterproof pH and temperature pen for everyday reservoir checks

The P50 Pro2 is the current-generation version of Aqua Master Tools' pH and temperature pen meter, built for the everyday job of checking feed and reservoir pH before dosing. It measures pH and temperature together, applying automatic temperature compensation so readings stay accurate whether the water is cold straight from a tap or has warmed up sitting in a reservoir — a detail that matters because pH readings drift with temperature if a meter is not compensating for it.

Like the rest of the range it ships fully calibrated out of the box with batteries included, has a waterproof, robust housing rated for daily use around wet grow room surfaces, and uses a replaceable electrode so the meter itself does not need replacing when the probe eventually wears. A calibration indicator and low battery warning keep growers from unknowingly working off a meter that needs attention. It suits any grower checking pH in soil, coco or hydro reservoirs as part of a normal feeding routine.

• Measures pH and temperature together with automatic temperature compensation
• Comes fully calibrated with batteries included
• Replaceable electrode for a long working life
• Waterproof, robust housing for daily grow room use
• Calibration and low-battery indicators flag when the meter needs attention