milwaukee Waterproof pH Tester with Replaceable Probe pH51

The Milwaukee pH51 Waterproof pH Tester is a high-accuracy, easy-to-use digital pH meter designed for everyday use in hydroponics, aquaponics, horticulture, and water treatment. Featuring a replaceable double junction probe, waterproof design, and compact size, the pH51 is perfect for both professionals and hobbyists looking for reliable pH readings in demanding environments.

This tester is fully waterproof and floats if dropped in water, making it ideal for use around nutrient tanks or reservoirs. The double junction electrode offers a longer lifespan and greater resistance to contamination compared to standard single junction designs. Its large, easy-to-read LCD display shows both pH and temperature readings, and the unit includes automatic temperature compensation (ATC) for precise measurements under varying conditions.

With simple calibration, a long battery life, and a rugged, ergonomic casing, the Milwaukee pH51 is built to perform reliably and consistently, even in harsh growing conditions.

Key Features:

• Replaceable Double Junction Electrode – Easy to maintain and longer-lasting

• Waterproof & Floatable Design – IP67 rated for wet environments

• Large LCD Display – Clear readings of both pH and temperature

• Automatic Temperature Compensation (ATC) – Ensures accurate readings at different temps

• Simple Calibration – Manual two-point calibration with easy-to-access screws

• Compact & Portable – Lightweight, handheld, and easy to carry

• Battery Included – Ready to use straight out of the box

Technical Specifications:

• pH Range: 0.00 to 14.00 pH

• Resolution: 0.01 pH

• Accuracy: ±0.1 pH

• Calibration: Manual, 2-point

• Temperature Range: 0 to 70°C

• Temperature Compensation: Automatic

• Electrode Type: Replaceable double junction (MA73600)

• Power Supply: 3 × 1.5V alkaline batteries

• Battery Life: Approx. 300 hours of continuous use

• Dimensions: 200 x 38 x 38 mm

• Weight: Approx. 100 g

• Waterproof Rating: IP67

Ideal Uses:

• Hydroponics and nutrient solution testing

• Aquaponics systems

• Environmental water quality testing

• Soil and runoff pH monitoring

• Laboratory and commercial growing operations

Why Choose the Milwaukee pH51?

The Milwaukee pH51 stands out for its rugged waterproof build, easy maintenance, and precision. With a replaceable probe and temperature compensation, it's perfect for growers and water quality professionals who need a durable, dependable pH meter that performs day in, day out. Whether you're maintaining nutrient levels or troubleshooting plant health issues, this tester delivers the reliability you need with the simplicity you want