Lab-Grade pH Testing Engineered for Value
The Milwaukee MW101 PRO pH Meter has earned a reputation worldwide for reliable, fast operation combined with rugged construction and exceptional accuracy. This portable pH meter delivers lab-grade performance at a price point accessible to professionals and enthusiasts alike.
Trusted by Professionals
From brewers and winemakers to hydroponic growers, pool professionals, and educators, the MW101 PRO is the go-to choice for applications where other pH meters fail. Its combination of accuracy, durability, and ease of use makes it an essential tool across diverse industries.
Key Features & Benefits
Lab-Grade Accuracy
The MW101 PRO delivers ±0.02 pH accuracy across the full 0.00-14.00 pH range with 0.01 pH resolution. Two-point manual calibration ensures precision for critical measurements in brewing, winemaking, hydroponics, agriculture, and laboratory applications.
Rugged, Reliable Design
Built to withstand the demands of field and production environments, the MW101 PRO features a tough housing that handles knocks and daily use. The meter is designed for professionals who need dependable performance in challenging conditions.
SE220 Lab-Grade Electrode
Includes the Milwaukee SE220 gel-filled, double junction pH electrode - a professional-grade probe designed for low maintenance and high performance. The double junction design prevents sample contamination and extends electrode life, especially in challenging samples like beer, wine, and nutrient solutions.
Fast, Easy Operation
Simply place the probe in your sample, gently stir, and wait for the reading to stabilize. The large digital LCD display provides clear, easy-to-read results. No complicated menus or settings - just accurate pH measurement when you need it.
Extended Flexibility
The 3-foot probe cable provides flexibility for measuring in fermentation vessels, tanks, reservoirs, and field locations without awkward positioning or sample transfer.
Long Battery Life
Get approximately 300 hours of continuous operation from a single 9V battery (included). Auto shut-off conserves power when the meter is not in use.
Technical Specifications
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pH Range: 0.00 to 14.00 pH
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pH Resolution: 0.01 pH
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pH Accuracy: ±0.02 pH
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Temperature Compensation: Manual, 0 to 50°C
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Calibration: Manual 2-point via offset and slope trimmers
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pH Electrode: SE220 gel-filled double junction with 3-foot cable (included)
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Operating Environment: 0 to 50°C / 32 to 122°F; max RH 95%
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Battery: 1 x 9V (included)
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Battery Life: Approx. 300 hours continuous use
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Dimensions: 5.7 x 3.1 x 1.6 inches
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Weight: 7.8 oz with battery
Professional Applications
Brewing
Monitor mash pH for optimal enzyme activity and extraction efficiency. Test sparge water, wort, and finished beer to ensure consistency and quality batch after batch.
Winemaking
Measure must and wine pH to make informed decisions about acid additions, malolactic fermentation timing, and SO₂ management. The SE220 electrode handles wine's challenging chemistry with ease.
Hydroponics & Agriculture
Maintain optimal nutrient solution pH for maximum nutrient availability. Test soil slurries and irrigation water to prevent pH-related deficiencies and toxicities.
Pool & Spa Maintenance
Verify water pH for swimmer comfort, equipment protection, and sanitizer effectiveness. The rugged design withstands pool-side conditions.
Education & Laboratory
Reliable, accurate pH measurement for teaching labs, quality control, and research applications. The simple operation makes it ideal for students and technicians.
Electrode Care & Maintenance
Proper electrode maintenance ensures fast, accurate results and extends probe life:
Storage
Keep the pH probe hydrated by storing in pH storage solution (MA9015) or calibration buffer. Never store in tap water or DI water, which will damage probe sensitivity. Store the electrode upright with the cap filled with storage solution to prevent leakage and maintain performance.
Cleaning
Regularly soak the electrode in cleaning solution (MA9016) to remove residue from samples, especially those with organic material. Clean the probe after use in challenging samples and before calibration.
Calibration
Calibrate regularly using pH 4.01, 7.01, and 10.01 buffer solutions to maintain accuracy. Always calibrate after cleaning or extended storage periods.
Pro Tip: Order the Milwaukee pH Maintenance Kit (PH-Main) to keep your MW101 PRO performing at its best. The kit includes storage solution, cleaning solution, and calibration buffers.
What's Included
- Milwaukee MW101 PRO pH meter
- SE220 gel-filled double junction pH electrode with 3-foot cable
- 9V battery
- Instruction manual
Note: Calibration solutions, storage solution, and cleaning solution are sold separately or available in the pH Maintenance Kit.
Milwaukee Instruments Quality
Milwaukee Instruments has built a reputation for reliable, accurate measurement tools trusted by professionals worldwide. The MW101 PRO continues this tradition with precision engineering, quality components, and comprehensive support.
Investment in Precision
At $166.75, the Milwaukee MW101 PRO pH Meter represents exceptional value for professionals and enthusiasts who need lab-grade accuracy in a portable, rugged package. The combination of ±0.02 pH accuracy, the professional SE220 electrode, and proven reliability makes it an essential tool for quality-focused operations.
Get Accurate pH Results You Can Trust
Whether you're brewing award-winning beer, crafting premium wine, optimizing hydroponic yields, maintaining pool chemistry, or conducting laboratory analysis, the Milwaukee MW101 PRO delivers the accurate, reliable pH data you need.
Order your MW101 PRO today and experience lab-grade pH measurement in a portable, rugged design.
