SKU: 71628176317

Milwaukee MA911B/2 Lab Grade Double Junction pH Electrode

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Description

Milwaukee MA911B/2 Lab Grade Double Junction pH ElectrodeMilwaukee MA911B 2 Lab Grade Double Junction pH Electrode with Extended Cable The MA911B 2 is a lab grade, gel filled pH probe for use with Milwaukee Monitors and Controllers. The resin body is tough enough to withstand accidental knocks while also providing protection for the glass sensing bulb. The double junction design reduces the risk of clogging and the spherical glass tip provides the largest possible surface area for faster results. The probe

 

Milwaukee MA911B/2 Lab Grade Double Junction pH Electrode with Extended Cable

The MA911B/2 is a lab grade, gel filled pH probe for use with Milwaukee Monitors and Controllers. 

The resin body is tough enough to withstand accidental knocks while also providing protection for the glass sensing bulb.  The double junction design reduces the risk of clogging and the spherical glass tip provides the largest possible surface area for faster results.  The probe comes with a 6.6-foot cable for increased flexibility in measuring. 

Specifications:

  • Body: Resin
  • Reference: Single, Ag/AgCl
  • Junction: Ceramic, single
  • Electrolyte: Gel
  • Range: 0-14 pH
  • Tip Shape: Sphere
  • Diameter: 0.5 inches
  • Dimensions: 4.7 inches / 6.4 inches
  • Operating Temperature: -5 to 70°C (23 to 158°F)
  • Cable length: 6.6 feet
  • Connection: BNC

CARE AND USE

pH meters usually start performing poorly because of problems with the probe, specifically the glass sensing bulb and the reference junction.  The glass bulb loses sensitivity with use and will eventually fail, which is true of all pH probes.  The reference junction is a small hole that allows the meter to compare the sample to a reference.  If the junction hole gets clogged, the pH probe will no longer function.

The life of your pH electrode can be extended in the following ways:

  1. Storage - The pH probe needs to be kept hydrated. Long periods of dry storage will damage the sensitivity of the probe. Allowing the probe to dry out may also result in the junction hole getting clogged. Storing in pH probe storage solution or pH calibration buffers will help address both these issues. Do not store in tap water and DI water, this will damage the sensitivity of the probe.  The best way to store the probe is with the probe's cap filled with storage solution or calibration buffer and the cap tightened to prevent leakage. It is also recommended to store the electrode upright to further reduce the potential for leakage.
  2. Cleaning - Residue from the sample can impact the sensitivity of the sensing bulb and clog the junction. This is especially true if the sample has a lot of organic material. It is recommended to regularly soak your electrode in cleaning solution.
  3. Calibration - The pH sensing bulbs become less sensitive over time so make sure that you are calibrating regularly to keep your PRO pH meter accurate. Also, calibrate after cleaning or a long period of storage.


Shipping Notes
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Exchange/Return Notes
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  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
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SKU: 71628176317

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Amazon Customer
Massapequa, US
★★★★★ 5
Very effective dermaplaning
I was really very impressed with these dermaplane razors. At first, I thought they were a little pricier than what I am used to, but after using them, I feel like they way more effective than others I have used. I thought they did a perfect job of removing all the post-menopause peach fuzzy I deal with. They left my skin smooth and did not leave any type of irritation on my skin. They come in two lengths, but I thought they were both equally easy to use. The handles are a nice, ergonomic shape that is easy to grasp. The blades stayed sharper longer than others. I will be ordering more of these and recommend them.
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Reviewed in the United States on October 22, 2025
J
Jencil
Bozeman, US
★★★★★ 4
I like the design of these dermaplane razors
I have been using a different brand that folds in half for easy travel but the drawback was a small and unreliable handle. Not so for these razors – the straight handle allows for a more controlled and steady shave, I don’t have to worry about my razor folding up mid stroke. The blades themselves are a decent length and come in two different sizes. I have been using the larger ones for dermaplaning and touch ups whereas the smaller blades work great for shaping up eyebrows. These are not the highest quality razors, I mean not terrible but I did have one of the razor parts pop off of the handle unintentionally. I feel like $13.99 is on the higher end for 12 razors, I have seen similar blades for cheaper and larger quantity (although they didn’t have the two different sizes).
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Reviewed in the United States on January 2, 2026
C
CriticalCarla
Fort Morgan, US
★★★★★ 3
12 pack derma planing razors
I am a huge fan of derma planing and was quite intrigued by this set of razors. I was curious how they'd stack up to my tried and true disposable razors hat I've been using for years. First, they look and feel pretty nice - definitely nicer than my current ones. I do wish the handles were a lil more grippy because they get slippery very easily if they get wet or if you accidentally get oil/lotion on them. There isn't any indication of how many times you can use each razor or if they're only single use. There are two different sized razors included, but I'm not sure what the smaller ones are for - I wish they'd include some instructions! Currently priced at $13.89 for 12 razors, I find the price to be too high for what you receive. They are nice razors, yes, but they are not premium quality.
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Reviewed in the United States on October 15, 2025
R
Rory Rotten
Natrona Heights, US
★★★★★ 5
Effective dermaplaning wands
These razors work really well for removing my peach fuzz. I have a fuzzy chin and hair on my knuckles that’s hard to get off with a larger razor. These come in two sizes for precision dermaplaning. I apply some jojoba oil to my skin before dermaplaning and there is no irritation. I love the frosty translucent handles, they look clean and professional. There are twelve to a pack and they come in a little box to keep them all together. These are a great value for the quality.
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Reviewed in the United States on October 14, 2025
B
Brandy
Battle Creek, US
★★★★★ 5
Fast & Easy
These work really good. I have been waxing for over 20 years and I just wanted to try something new. This set comes with two different sizes. I used the large blade for my chin and lip. And the smaller blade for my eyebrows. The handle is sturdy and not flimsy. Comes with a case. I already stuck one of each in my travel bag!
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Reviewed in the United States on October 15, 2025

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