SKU: 31493775437

Milwaukee PH55 PRO Waterproof pH & Temperature Tester with Replaceable Probe

Sale price$110.54 Regular price$122.82
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Description

Milwaukee PH55 PRO Waterproof pH & Temperature Tester with Replaceable ProbeMilwaukee PH55 PRO Waterproof pH & Temperature Tester with Replaceable Probe The Milwaukee Waterproof pH55 PRO pH temperature tester is accurate, cost effective, well rounded, rugged and reliable. Ideal for use in aquariums, hydroponics, horticulture, education, pools, beer and many other applications. It features dual level LCD readouts, an easily replaceable probe and extended pH ranges to meet almost any application. It's 1 or 2 point automatic

Milwaukee PH55 PRO Waterproof pH & Temperature Tester with Replaceable Probe

The Milwaukee Waterproof pH55 PRO pH/temperature tester is accurate, cost effective, well rounded, rugged and reliable.  Ideal for use in aquariums, hydroponics, horticulture, education, pools, beer and many other applications.

It features dual level LCD readouts, an easily replaceable probe and extended pH ranges to meet almost any application. It's 1- or 2-point automatic calibration is simple-to-use and offers two sets of memorized buffers to select. 

The Waterproof pH55 PRO tester is accurate to ±0.1 pH & +/-0.5°C (+/-1°F) and is easy to read.

With easy 2-point automatic 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.

 Features:

  • Fast, easy to read results with large digital LCD readout
  • Extreme pH accuracy to ±0.1 pH with an extended pH range (-2.0 pH to 16.0 pH)
  • Resolution to 0.1 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 Automatic one or two-point calibration
  • 2 sets of pre-memorized buffers
  • Gel-filled, double junction pH electrode for low maintenance and high performance
  • Over 300 hours of battery life (batteries included)
  • Fully waterproof to IP65
  • Replaceable pH electrode Mi56P

 Specifications:

  • pH Range: -2.00 to 16.00 pH
  • Temp Range: -5 to 70°C
  • pH Accuracy ±0.02 pH
  • pH Resolution: 0.01 pH
  • pH Typical EMC Deviation: ±0.2 pH
  • Temp Resolution 0.1°C
  • Temp Accuracy (@25°C): ±0.5°C
  • Temperature Compensation: Automatic, 0 to 70°C
  • Temp Typical EMC Deviation: ±0.5°C
  • Calibration: Automatic, 1 or 2 points
  • pH Electrode: SE220 (included)
  • Temperature: Probe MA830R (included)
  • Environment: 0 to 50°C / 32 to 122°F; max RH 95%
  • Battery Type: 1 x 9V (included)
  • Battery Life: Approx. 300 hours of continuous use
  • Auto-off: After 8 minutes of non-use
  • Approximate dimensions: 5.7 x 3.1 x 1.6 inches
  • Weight: 1.1 lbs with battery

 Milwaukee PH55 Manual


CARE AND USE

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.

You can extend the life of your pH electrode in the following ways:

  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: 31493775437

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JJ Fording
West Palm Beach, US
★★★★★ 5
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Size: Medium
My dog loves chasing these balls. He seems to love the squeak! They fit the chuck it stick perfectly, and are great replacements for the originals that came with the stick.
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Reviewed in the United States on February 7, 2026
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Steve just Steve
Pawtucket, US
★★★★★ 5
Nice set of balls
Size: Medium
The squeaker quickly became my dog’s favorite ball and has replaced the fuzzy tennis balls. My dog is a nonstop fetcher and these chuck it balls are durable and fun.
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Reviewed in the United States on January 9, 2026
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Claudia Garfield
Phoenix, US
★★★★★ 5
Perfect ball
Size: Medium
Our dog loves these!
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Reviewed in the United States on May 26, 2026
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Timothy john starkweather
Lowell, US
★★★★★ 4
Soild
Size: Medium
The orange and blue ball is perfect. Once start taken because the because the blue noisy one was a little to easy for my dog to start ripping pieces off. Will say most toys do not survive his chewing.
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Reviewed in the United States on January 24, 2026
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Christy D.
Pawtucket, US
★★★★★ 5
Aggressive chewer who loves fetch approved!!
Size: Medium, Size: Medium
I highly recommend the Chuck-It brand in general, especially for dogs with an aggressive bite. These balls are awesome and are the most durable balls I’ve bought for my 50 lbs lab mix. He has not been able to break one of them yet and we’ve had a few of the squeaky balls for months. They are a bit pricey but worth it. The one in the pic has been used for months, lives outside and you can see it’s still in great shape.
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Reviewed in the United States on June 22, 2025

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