Milwaukee PRO Testers / Portable Meters
Milwaukee PRO Testers & Portable Meters — Compact, Waterproof, Lab-Grade Accuracy
Milwaukee Instruments PRO Testers and Portable Meters deliver professional-grade pH, EC, TDS, temperature, and dissolved oxygen measurements in rugged, field-ready designs. Whether you need a pocket-sized tester for quick spot checks or a full-featured handheld meter for demanding lab and field applications, Milwaukee's PRO range has you covered.
Milwaukee PRO Testers — Compact. Pocketable. Waterproof.
Milwaukee PRO digital testers are engineered for portability without sacrificing accuracy. At just 3.5 ounces, PRO Testers fit in your pocket and can be operated with one hand — ideal for growers, technicians, and professionals who need fast, reliable readings on the go.
- Compact and lightweight — 3.5 oz, fully one-hand operable
- Fully waterproof construction for use in demanding environments
- Replaceable probe design for extended instrument lifespan
- No cables required — completely portable and self-contained
- Available for pH and conductivity (EC/TDS) measurement
Milwaukee PRO Portable Meters — Tough. Lab-Grade. Pro Standard.
For professionals who need the next level of performance, Milwaukee PRO Portable Meters deliver lab-grade accuracy in a durable handheld form factor. One of the best-rated meter ranges in its class, PRO Meters are trusted by thousands of professionals worldwide for pH, conductivity, temperature, and dissolved oxygen measurement.
- Lab-grade performance at an affordable professional price point
- Measures pH, EC, TDS, temperature, and dissolved oxygen
- Automatic temperature compensation (ATC) for accurate readings across varying conditions
- Durable, field-ready construction built to international quality standards
- One of the highest-rated handheld meter ranges in its class
Applications
- Hydroponics & Greenhouse: Monitor nutrient solution pH and EC for optimal plant growth
- Aquaculture & Aquariums: Maintain water chemistry and dissolved oxygen levels
- Water Treatment & Environmental: Field testing of water quality parameters
- Food & Beverage: pH and conductivity testing in production and quality control
- Laboratory & Research: Portable precision measurement for scientific applications
Shop Milwaukee PRO Testers and Portable Meters at Get Ultimate Now — genuine instruments, competitive pricing, and fast shipping.

