The Milwaukee MW102 PRO+ is a professional-grade digital meter designed for fast, simple, and reliable pH and temperature testing in demanding saltwater aquarium environments. This lab-grade instrument provides the precision required for maintaining stable water chemistry, moving beyond the guesswork of colorimetric test kits. Its tough, rugged construction ensures it can withstand the rigors of frequent use in a wet environment, making it a dependable tool for serious aquarists.

This meter delivers exceptional accuracy of ± 0.02 pH, which is up to five times more precise than many alternative meters. It features a simple two-point calibration process for superior accuracy and comes with a high-quality, low-maintenance SE220 pH probe. A separate temperature probe enables Automatic Temperature Compensation (ATC), which automatically adjusts pH readings based on the water temperature, ensuring your results are always correct. The temperature probe also functions as a highly accurate standalone thermometer.

The MW102 PRO+ is ideal for advanced reef hobbyists, aquaculture professionals, and anyone who needs to maintain precise water parameters for sensitive corals and marine life. If you are dosing supplements, running a calcium reactor, or simply want to ensure the utmost stability in your reef tank, this meter provides the confidence and accuracy that other test methods lack. It is the preferred choice for those who require consistent, repeatable, and trustworthy pH measurements.