Add to your order
- NO ADDITIONAL COST: You pay $0 for repairs – parts, labor and shipping included.
- COVERAGE: Plan starts on the date of purchase. Drops, spills and cracked screens due to normal use covered for portable products and power surges covered from day one. Malfunctions covered after the manufacturer's warranty.
- EASY CLAIMS PROCESS: File a claim anytime online at www.Asurion.com/Amazon or by phone. Most claims approved within minutes. We will send you an Amazon e-gift card for the purchase price of your covered product. In some cases, we will replace or repair it.
- MORE DETAILS: Additional information about this protection plan is available within the “Product guides and documents” section. Simply click “User Guide” for more info. Asurion will also email your plan confirmation with Terms & Conditions to the address associated with your Amazon account within 24 hours of purchase (if you do not see this email, please check your spam folder). Contact us if you cannot locate your plan confirmation and Terms & Conditions via email at AmazonFeedback@Asurion.com.
- NO ADDITIONAL COST: You pay $0 for repairs – parts, labor and shipping included.
- COVERAGE: Plan starts on the date of purchase. Drops, spills and cracked screens due to normal use covered for portable products and power surges covered from day one. Malfunctions covered after the manufacturer's warranty.
- EASY CLAIMS PROCESS: File a claim anytime online at www.Asurion.com/Amazon or by phone. Most claims approved within minutes. We will send you an Amazon e-gift card for the purchase price of your covered product. In some cases, we will replace or repair it.
- MORE DETAILS: Additional information about this protection plan is available within the “Product guides and documents” section. Simply click “User Guide” for more info. Asurion will also email your plan confirmation with Terms & Conditions to the address associated with your Amazon account within 24 hours of purchase (if you do not see this email, please check your spam folder). Contact us if you cannot locate your plan confirmation and Terms & Conditions via email at AmazonFeedback@Asurion.com.
Add to your order
Image Unavailable
Color:
-
-
-
- To view this video download Flash Player
-
-
-
-
-
-
-
2 VIDEOS -
Oakton AO-35423-01 EcoTestr pH 2+ Pocket pH Meter 1 pack
Purchase options and add-ons
| Brand | Oakton |
| Power Source | Battery Powered |
| Item Weight | 5.6 Ounces |
| Item Dimensions LxWxH | 8.6 x 5 x 1.4 inches |
About this item
- Batteries: 4 A76 1.5V miniature alkaline batteries (included)
- Buffer recognition: nist and usa
- Calibration: up to 3 points
- Display type: digital
- Meter type: tester
Customer ratings by feature
Frequently bought together

Similar items that may ship from close to you
Product Description
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 leak-proof 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. 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.
Product information
| Product Dimensions | 8.6 x 5 x 1.4 inches |
|---|---|
| Item Weight | 5.6 ounces |
| Manufacturer | COLE-PARMER |
| ASIN | B01MYV3938 |
| Item model number | AO-35423-01 |
| Batteries | 4 LR44 batteries required. (included) |
| Customer Reviews |
4.2 out of 5 stars |
| Best Sellers Rank | #124,975 in Industrial & Scientific (See Top 100 in Industrial & Scientific) #205 in Lab pH Meters |
| Is Discontinued By Manufacturer | No |
Warranty & Support
Feedback
Product guides and documents
Important information
To report an issue with this product or seller, click here.
Looking for specific info?
Customer reviews
Customer Reviews, including Product Star Ratings help customers to learn more about the product and decide whether it is the right product for them.
To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzed reviews to verify trustworthiness.
Learn more how customers reviews work on AmazonReviews with images
Submit a report
- Harassment, profanity
- Spam, advertisement, promotions
- Given in exchange for cash, discounts
Sorry, there was an error
Please try again later.-
Top reviews
Top reviews from the United States
There was a problem filtering reviews right now. Please try again later.
**** Review changed to 5 stars*** I received another unit and I thought it was broken also, I took out the batteries and put them in again - it works!! If yours itsnt working on arrival try taking the batteries out and putting them back in
Reviewed in the United States on May 25, 2017
**** Review changed to 5 stars*** I received another unit and I thought it was broken also, I took out the batteries and put them in again - it works!! If yours itsnt working on arrival try taking the batteries out and putting them back in
Update: contacted mfgr and they are replacing the device. Let’s see how that goes
Doesn’t read accurately. Expected pH reading 5.4, measured 5.7. Check with better equipment... 5.4. Recalibrate, remeasure... 5.7. Do I trust this thing? Or maybe the known value plus the $2k equipment? I’m gonna go with this thing is worthless
After the 3 month mark, the auto calibrate stopped working. Was off by 2 points (if it says 6.0, it was actually 6.2) gradually kept going, now it's off by .5 and the bottom cover or "cup" of you prefer, turned white and cracked.
The auto calibrate still says "Done" as if it's working, but alas, it's not.
For the price, I would avoid this one!
Maybe I was so disappointed because it seems so well built. It's really sturdy, seems to have great seals ect.
I have to do industrial boiler water testing daily for my workplace. PH is an important measurement, so when our meter got dropped and broken at work, I talked our purchaser into buying 2 of these. They lasted about a month each before they wouldn't auto calibrate. So now I look like a fool for recommending these. Maybe the newer model is better, but this one is not worth the plastic it's made from.
Sorry Oakton, you missed the mark on this one.
My only complaint is this isnt backlit so i need to shine a flashlight on it when its in my reservoir to see when it's got a concrete reading.
The cap is a bit better than the old one and has a level for filling calibration fluids. Calibration on the old one was fine and easy, 4, 7, 10 pH. This one is a bit more tricky. Never really tells you it is done. Also when calibrating at pH 10 it would not go above 9.8 and at 4 it would not go below 4.1 Thus I would be concerned about the calibration. I did not have this on the older version.
I have used them back to back and they seem consistent to +/- 0,1 pH.
Overall this is good but see no big difference with older one and the calibration issue is a concern.
Top reviews from other countries
It is easy to use - but poor instructions on how to calibrate.
Accuracy I do not know because I have nothing to compare it with at this point. I will soon have a comparison and will update if NEEDS improvement

















