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Oakton pH 2+ EcoTestr Pocket pH Meter

Item# DO-35423-01

$71.00 USD/EACH
$63.90 USD/EACH

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  • Upgrades to design and function won't break the bank
  • Expanded 4-digit dual-line display shows pH and temperature readings simultaneously
  • Additional key provides an easier, more intuitive interface
  • Improved cap functions as a sample cup and as a stabilizing base to stand the meter upright
  • IP67-rated housing is waterproof and floats
This new addition to the Oakton EcoTestr product line features updates to make measuring water quality easier and faster. The display is larger with a better viewing angle, has indicators for battery life, readiness, and calibration, and shows both the parameter and temperature readings at the same time.

To enhance field use, the cap was redesigned to be leakproof and can be attached to the top of the meter when not being used—no more lost caps! The cap features a fill line, so you know how much sample you need for an accurate reading when using the cap as a sample cup. It is also wider, providing a base to keep the meter upright for hands-free measurements.

The keypad now has a fourth key to simplify menu navigation while keeping convenient one-touch calibration. The new housing is compatible with lanyards to prevent losing or dropping, but is still waterproof and floats just in case.

What's Included:
four A76 1.5 V miniature alkaline batteries.
Product Type pH Tester
Meter style Tester
Range (pH) 0.0 to 14.0
Resolution (pH) 0.1
Resolution (Temperature) 0.1°F (0.1°C)
Accuracy (pH) ±0.1
Accuracy (Temperature) ±0.9°F (0.5°C) + 1 LSD
Temperature compensation Automatic
Display Dual-line LCD
Calibration Up to 3 points
Qty/ea 1
Waterproof Yes
Buffer recognition USA, NIST
Power Four A76 1.5 V miniature alkaline batteries (included)
Brand Oakton
Min temperature (°C) 0


at $17.50 USD/PACKAGE of 6

In stock.

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Questions and Answers

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1 Question | 1 Answer
Displaying question 1
  • Q:

    How often does the pH meter need to be calibrated?
    Asked on 5/23/2017 by Hank Westscott from undisclosed

    1 answer



      We typically recommend that pH meters are calibrated before each use. At the very least once a week, with new fresh buffers to ensure accuracy.

      Answered on 7/6/2017 by Jose from Technical Support
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Product Reviews


by PowerReviews
Oakton EcoTestr pH 2+ Pocket pH Meter

(based on 4 reviews)


of respondents would recommend this to a friend.


No Pros


No Cons

Best Uses

No Best Uses
    • Was this a gift?:
    • No (3)

Reviewed by 4 customers

Displaying reviews 1-4

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(1 of 1 customers found this review helpful)


Great unit

By Renee

from Madsen Ontario

Verified Buyer

Comments about Oakton EcoTestr pH 2+ Pocket pH Meter:

Easy to use unit with quick and simple calibration. Very happy with this product...would recommend.

  • Was this a gift?:
  • No

(1 of 1 customers found this review helpful)


Yes I would buy this unit again

By N/A

from N/A

Verified Buyer

Comments about Oakton EcoTestr pH 2+ Pocket pH Meter:

Easy to use and very good unit for the cost and the warranty are very good too.All around the best I have use in a while.

  • Was this a gift?:
  • No

(2 of 2 customers found this review helpful)


Works Great as Always - My Plants are Happy!

By Dave

from Oceanside, CA

Verified Reviewer


  • Battery Monitor
  • Easy to use
  • Large Display
  • Quick Reading


  • Display jumps around a little

Best Uses

    Comments about Oakton EcoTestr pH 2+ Pocket pH Meter:

    I received the new Oakton ECOtestr pH2+ meter in the mail today, I noticed the cap got quite an upgrade from the previous model, its thicker, now has a fill line, and the meter is also equipped with a rubber gasket for a better water tight seal while testing or storing. I removed the cap to add a little probe storage solution in order to hydrate the sensor, and let that sit overnight.

    The new meter has a much larger main screen to display more information. I do like the battery monitor addition, and if you accidentally leave the meter on, it will shut itself off after 8 minutes of non use. The larger display also gives a temperature reading which is nice so you don't shock your roots with cold water.

    Its now time to calibrate and while the new meter allows for 3 point calibration, 2 point works just fine for our needs and any calibration solution will do. I have a couple sample bottles of PH 7.0 and PH 4.0, so those are what we will use today. Calibration of the new meter was easy, you press the calibration button, dip the sensor into your calibration solution and the meter does the rest. There is a CALC icon that flashes when the meter is finding its value, and then a CHECK MARK when its found. After a few seconds, the meter hit its calibration and was done. All I needed to do was repeat the process for both of my calibration solutions to achieve a 2 point calibration, and now I am ready to test my feed.

    I already know where my PH lands given the PPM's I am using, but we check daily and confirm before ever feeding our plants. After a few drops of PH up or PH down depending on your waters buffer, I stir vigorously and dip the meter into my reservoir. The number found its target pretty quickly and there is a new CLOCK icon that flashes, within a few seconds we had a CHECK MARK and I was done. Adjust with PH up or down as needed until you reach your desired PH, since we run passive hydroponics, we want to be in the area of 5.8. The new meter works GREAT!

    • Was this a gift?:
    • Yes

    Very user friendly.

    By Yvette

    from Pompano Beach, FL

    Verified Buyer

    Comments about Oakton EcoTestr pH 2+ Pocket pH Meter:

    This item is very easy to use. The only issue we saw is that the unit arrived with the batteries in backwards and at first we thought it did not work until we opened and checked batteries. Once they were reinstalled properly we liked the ease of functionality.

    • Was this a gift?:
    • No

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