The Milwaukee Waterproof pH51 Tester is one of our most accurate low cost, rugged and reliable pH testers in the market featuring the ability to easily replace the probe providing for years of carefree use. It’s simple 2 point manual calibration is simple-to-use. Ideal for use in aquariums, hydroponics, horticulture, pools and many other applications.

The Milwaukee pH51 pH tester offers:

The Waterproof pH51 tester is accurate to ±0.1 pH and is easy to read.

With easy 2 point manual calibration, this pH tester is quickly calibrated to an accuracy of much more expensive meters.  Simple design and rugged, it brings great value for any application. Why guess at your readings using litmus paper when you can have guaranteed accurate, digital LCD results.

• Fast easy to read results with large digital LCD readout.
• Extreme pH accuracy to ±0.1 pH with a pH range (0.0 pH to 14.0 pH).
• Lightweight and portable.
• Easy measurement: just place the probe in the sample, gently stir, wait for the stability indication to show a stable reading and then freeze the reading.
• Simple manual one or two-point calibration.
• Acid Based calibrations, cleaning & storage solutions use PH-START  add MA9010 (10.01 cal. buffer) or M10010B if Basic cal. required.
• Gel-filled, double junction pH electrode for low maintenance and high performance.
• Fully waterproof to IP65.
• Over 1500 hours of continuous battery life (batteries included).
• Replaceable pH electrode MA73600.