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H2O Sync pH/ORP Electrode Storage Solution 8 oz / 237 mL for use with pH Probes and ORP Probes to Extend Life

4.4 4.4 out of 5 stars 111 ratings
$12.49
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Purchase options and add-ons

  • 3M KCl pH/ORP electrode storage solution to extend life of pH and ORP probes
  • Many users find the solution reduces the need and frequency of pH meter/probe calibration
  • 8 oz / 237 mL wide base bottle with flip top snap cap for easy pouring and reducing spills

Additional Details

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H2O Sync pH/ORP Electrode Storage Solution 8 oz / 237 mL for use with pH Probes and ORP Probes to Extend Life
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Product details

  • Is Discontinued By Manufacturer ‏ : ‎ No
  • Product Dimensions ‏ : ‎ 2.25 x 2.25 x 5.3 inches; 11.29 ounces
  • Item model number ‏ : ‎ 612520430962
  • Date First Available ‏ : ‎ February 22, 2017
  • Manufacturer ‏ : ‎ H2O Sync
  • ASIN ‏ : ‎ B06WW82VS5
  • Customer Reviews:
    4.4 4.4 out of 5 stars 111 ratings

Product Description

pH probes and ORP probes are sensitive and expensive. Make sure you have the H2O Sync pH Electrode Storage Solution ready to safely store your pH probe in when not being used to extend its life!
Compatible with almost all pH probes, this 3M KCl solution is what most manufacturers recommend for storage. (Some international pH probe manufacturers may also specify 3N KCl or 3NKCl or call it an electrode reference preservation solution which is the same as this solution).
The handy flip-top snap cap makes it easy to pour even in small storage containers with fewer spills and also avoids larger spills from accidentally knocking the bottle over.

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Customer reviews

4.4 out of 5 stars
4.4 out of 5
111 global ratings

Customers say

Customers like the quality, value, accuracy, and cap of the lab supply. They mention that it does its job well, it's great value, and an excellent price for storage solution. Some appreciate the fliptop cap and clear plastic cap. However, some customers report that the seal was broken and the solution leaked out in the packaging.

AI-generated from the text of customer reviews

8 customers mention8 positive0 negative

Customers are satisfied with the quality of the lab supply. They mention it does its job well, is of good quality, and should last them a while. Some say that one bottle has lasted 17 months.

"I'm sure the product is what it is and of good quality...." Read more

"...Allows you to put the perfect amount and never waste a drop. Ohh an the price is exactly the same as 17 months ago. Thanks so much A++++" Read more

"Product works as intended. I normally have to calibrate my pH meter once a week as it would start to drift by 0.1 to 0.2 pH after a week...." Read more

"...Works great and at a good price point. Store in a cool dark place." Read more

6 customers mention6 positive0 negative

Customers appreciate the value of the storage solution. They mention it's an excellent price for the storage.

"...The shipping was fast, great price, the company wanted to make sure I was satisfied, and I really like the no spill bottle." Read more

"Great value" Read more

"...Product does what it is intended to do and is cheaper than most other pH storage solutions...." Read more

"...Works great and at a good price point. Store in a cool dark place." Read more

3 customers mention3 positive0 negative

Customers are satisfied with the accuracy of the solution. They mention that it keeps the pH meter accurate and calibrated longer.

"...manufacturers of PH meters recommend it's use for long life and continued accuracy...." Read more

"Solution is accurate" Read more

"Keeps pH meter accurate and calibrated longer...." Read more

3 customers mention3 positive0 negative

Customers are satisfied with the cap of the lab supply. They mention that the fliptop cap is great for filling the small pen cap/reservoir, and the bottle cap is nice. Some customers also appreciate the clear plastic cap that screws on with an o-ring.

"...My pH pen stays in calibration much longer now. The fliptop cap is great for filling the small pen cap/reservoir...." Read more

"...It is often a week between uses. My new tester has a small, clear plastic cap that screws on with an o-ring seal, so it'll probably be a long time..." Read more

"Cheaper than Apera 3M KCL Storage Soaking Solution. Nice bottle cap. Made in USA...." Read more

3 customers mention0 positive3 negative

Customers are dissatisfied with the leakage of the lab supply. They mention that the seal was broken and solution was leaked out in the packaging.

"Package was wet and open when i got it cant say if it will be any good since it wasnt sealed." Read more

"Seal was broken and solution was leaked out in the packaging" Read more

"I got this to us on my meter It shipped and it ended up leaking all over the shipping box" Read more

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5 Stars
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Great product! does exactly what its supossed to and seller was fast.
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Top reviews from the United States

Carl S. Osborn
5.0 out of 5 stars Can't find any faults
Reviewed in the United States on January 12, 2019
Verified Purchase
I'm sure the product is what it is and of good quality. The shipping was fast, great price, the company wanted to make sure I was satisfied, and I really like the no spill bottle.
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Obi-Wan Cannabinoid
5.0 out of 5 stars Works Great and Easy to Use
Reviewed in the United States on February 1, 2019
Verified Purchase
I paired this storage solution with my entry level pH pen. It works as advertised. My pH pen stays in calibration much longer now. The fliptop cap is great for filling the small pen cap/reservoir. It makes it easy to squeeze out a few drops to refill the pen cap after each use.

I will buy this storage solution again.
2 people found this helpful
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Adam
5.0 out of 5 stars It does it’s job
Reviewed in the United States on March 28, 2023
Verified Purchase
Great value
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Amazon Customer
4.0 out of 5 stars Cheaper than Apera 3M KCL Storage Soaking Solution. Nice bottle cap. Made in USA.
Reviewed in the United States on January 12, 2021
Verified Purchase
5 star product, deducted 1 star for Amazon shipping a squeeze bottle of liquid without any box.

TL;DR. Cheaper than Apera 3M KCL and 8 oz should last a year. May pay for itself by requiring fewer calibrations or extending lifespan of probe.

Amazon shipped it without a box, just bubble wrap envelope. Order at least one other item with same delivery date (so Amazon ships them together in a box).

This is 3M KCl, just like Apera 3M KCL storage solution (AFAICT).
Made in Texas, USA with two ingredients only: distilled water, potassium chloride.
Bottle looks like the pictures on Amazon. Squeezable bottle with flip cap can pour one drop at a time.

Got this for Apera PH20 pH meter which is used often. PH20 instructions say keep a few drops of tap water in the cap, but I don't think that's ideal.

Storing probes soaked in 3M KCl can extend the probe's lifespan and require fewer calibrations (buy fewer probes, buy less calibration solutions).

This 8 oz bottle should last a year for Apera PH20 & PH60 meters:
1. Rinse probe with water and dry (shake off water, then use paper towel on plastic parts, avoid scratching bulb)
2. Fill cap with about 4 ml of 3M KCl (it should fully submerge the bulb). Store probe with cap side down.
3. Don't empty the cap daily. Just add extra drops if needed.
4. Every week: clean out and dry the cap, then refill with 4 ml of fresh 3M KCl.

If the pH of 3M KCL isn't correct, then double check using PH4 and PH7 calibration solutions before calibrating.
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Senor Grows
5.0 out of 5 stars The best! Thanks for not raising prices
Reviewed in the United States on August 8, 2021
Verified Purchase
One bottle has lasted 17 months. Amazing. Simply the best because of the dispenser on the cap. Allows you to put the perfect amount and never waste a drop. Ohh an the price is exactly the same as 17 months ago. Thanks so much A++++
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Mike S.
5.0 out of 5 stars Does the job at a much lower price than most other storage solutions available through Amazon.
Reviewed in the United States on October 14, 2017
Verified Purchase
This is the second time I purchased this product. Product does what it is intended to do and is cheaper than most other pH storage solutions. I used to have cheap pH testers that needed to be sealed in a bottle in about 1/2" deep of storage solution because the caps that came with them allowed solution to evaporate with in 24 hours. It is often a week between uses. My new tester has a small, clear plastic cap that screws on with an o-ring seal, so it'll probably be a long time before I need any more.
One person found this helpful
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Zack W.
5.0 out of 5 stars Keeps pH meter accurate and calibrated longer.
Reviewed in the United States on October 9, 2017
Verified Purchase
Product works as intended. I normally have to calibrate my pH meter once a week as it would start to drift by 0.1 to 0.2 pH after a week. I have been storing my pH meter in a container of this storage solution for over a month now and my pH meter still reads 7.0 when I test it in the 7.0 solution.
2 people found this helpful
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Anthony
3.0 out of 5 stars Product was open
Reviewed in the United States on March 16, 2021
Verified Purchase
Package was wet and open when i got it cant say if it will be any good since it wasnt sealed.
Customer image
Anthony
3.0 out of 5 stars Product was open
Reviewed in the United States on March 16, 2021
Package was wet and open when i got it cant say if it will be any good since it wasnt sealed.
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Top reviews from other countries

Amazon Customer
5.0 out of 5 stars 👍
Reviewed in Canada on January 21, 2020
Verified Purchase
Works as expected.
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