SKU: 79056528413

Milwaukee pH51 Waterproof pH Tester with Replaceable Probe

Sale price$75.46 Regular price$83.84
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Ships within 48 hours · Estimated delivery Jul 23 - Jul 28

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Description

Milwaukee pH51 Waterproof pH Tester with Replaceable ProbeMilwaukee pH51 Waterproof pH Tester with Replaceable Probe The Milwaukee Waterproof pH51 Tester is a cost efficient, rugged and reliable pH tester. It is ideal for use in aquariums, hydroponics, horticulture, pools and many other applications. A large LCD screen makes reading results easy. The probe is double junction allowing quick, accurate pH readings and response times. With easy 2 point manual calibration, this pH Tester is quickly calibrated to

Milwaukee pH51 Waterproof pH Tester with Replaceable Probe

The Milwaukee Waterproof pH51 Tester is a cost efficient, rugged and reliable pH tester.  It is ideal for use in aquariums, hydroponics, horticulture, pools and many other applications.

A large LCD screen makes reading results easy.  The probe is double junction allowing quick, accurate pH readings and response times. With easy 2-point manual calibration, this pH Tester is quickly calibrated to an accuracy of much more expensive meters.  It has an easily replaceable probe, offering years of carefree use.  The Tester is lightweight and waterproof to IP65.

Features:

  • Fast, easy to read results with a 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
  • 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

Specifications:

  • pH Range: 0.0 to 14.0 pH
  • pH Resolution: 0.1 pH
  • pH Accuracy: ±0.1 pH
  • Typical EMC Deviation: ±0.1
  • Calibration: Manual, 1 or 2 points
  • Probe: Replaceable double junction for extended life (MA73600)
  • Environment: 0 to 50°C / 32 to 122°F; max RH 100%
  • Battery Type: 3 x 1.5V; IEC LR44, A76 (included)
  • Battery Life: Approx. 1500 hours of continuous use
  • Dimensions: 7.9 inches × 1.5 inches (diameter)
  • Weight: 3.5 ounces (99.22 g)

Milwaukee pH51 Manual



CARE AND USE

All pH sensors have a limited life and response time gets longer with age. Properly maintaining your pH Tester will give you fast, accurate results for longer.

Here are four tips:
1. Always store with the cap full of buffer or storage solution MA9015, not water.
2. Clean your Tester regularly by soaking in cleaning solution MA9016.
3. Calibrate after cleaning and/or storage before testing to adjust for changes in the pH sensor.
4. Gently stir the Tester in the sample for a faster result.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 79056528413

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4.6 ★★★★★
Based on 26 reviews
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J
Verified Purchase
Janet Fruehauf and family
Bozeman, US
★★★★★ 1
Doesn't fit 2015 C300 4matic mercedes
Color: Textured
It doesn't fit 2015 C300 4matic mercedes
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 30, 2026
A
Amazon Customer
Fort Morgan, US
★★★★★ 4
Would not work in my jeep
Color: Textured
This seems like a decent holder, however it is not universal as it would not fit in my jeep. Check to make sure you have the right kind of air vents for it. I could not get it to work for my vehicle as the vents are too wide.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 10, 2026
K
kelley
New York, US
★★★★★ 5
Works great!
Color: Black, Color: Black
This is a very simple, lightweight phone mount. It works well, I’m surprised how securely it fits on the car vent. I’ve tried others and couldn’t get them to fit right. My phone slides into the top and fits nicely. It was easy to install.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 19, 2026
K
Verified Purchase
KB
New York, US
★★★★★ 5
Nice, and would buy it again
Style: Qi2 Charging Mount
So far I'm liking this product. For the model X, you can use it on either side of the screen. As well, it holds on very well on the screen. Very good build quality and design. Fits perfectly to the screen. Very strong magnetic fit. But can cause scratches to your case if tth case is a hard plastic material.
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Reviewed in the United States on November 27, 2025
C
Verified Purchase
Chris Luu
Natrona Heights, US
★★★★★ 5
Flat screen phone holder charger
Style: Qi2 Charging Mount, Style: Qi2 Charging Mount
This phone holder works perfectly on my aftermarket flat screen. It charges and it swivels 360. Highly recommend.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 18, 2026

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