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
  • 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]
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SKU: 71628176317

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Amazon Customer
Grantham, US
★★★★★ 5
Nice drawer organizers with a lot of versatility.
Color: Clear
I bought these to organize my desk drawer because it seems like I can never find anything I'm looking for without taking everything out first,which is always a pain,so I thought why not try a set of drawer organizers.Talk about night and day,these things keep all my stuff tidy and easy to find now,it's great! The plastic doesn't feel cheap either and the different sizes are very versatile,they also come with enough rubber feet for all the containers,though you do have to peel and stick them on yourself,but it's easy and the adhesive feels very strong. I would definitely recommend these if you're looking for some great containers to get things more organized.
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Reviewed in the United States on February 23, 2026
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Kirbyjakobs
Phoenix, US
★★★★★ 5
Easy to configure. So helpful!
Color: Clear, Color: Clear
My house has old bathroom cabinets that are too narrow for most organizers I have found. These organizers come in different sizes so I can mix and match the pieces to fit the drawers and items I have to store. I have filled two drawers with these and still have more containers to use. These are truly the tool for the job. They are sturdy, stable and I thought I would have trouble with them moving around but they stay in place while maintaining their versatility. If I need to switch out stuff, I just reconfigure the drawer. No assembly required. One of my most favorite simple purchases. I can’t believe I have lived without these simple but helpful organizers!
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Reviewed in the United States on March 8, 2026
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Mandy Rodriguez
San Leandro, US
★★★★★ 5
Great for lip gloss. Headbands. Little toys and trinkets for preteen
Color: Lilac
This set is great! I love the colors, and my daughter is obsessed with anything purple — light purple, dark purple, all of it 💜. She uses these for all her little trinkets like keychains, Q-tips, headbands, braces, hand sanitizers, little toys, and lip glosses. They’re easy to use, easy to clean, and great quality. She’s had them for a few months now and they’ve held up really well Different sizes. They like up for accessibility
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Reviewed in the United States on May 28, 2026
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Christine Ellis
Natrona Heights, US
★★★★★ 5
Novelty quality plastic, gorgeous color, and sturdy
Color: Purple
I was a little surprised when I took it out of the pkg. It seemed flimsy. It holds whatever I put in any position, perfectly balanced.
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Reviewed in the United States on January 12, 2026
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C.Blackman
Lowell, US
★★★★★ 4
Plastic key holder
Color: Black
A little light as it is plastic, but it does the job
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Reviewed in the United States on March 16, 2026

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