Atlas Scientific pH/ORP Electrode Storage Solution 125ml (4oz)
$19.99
Price: $19.99
(as of Sep 25, 2025 23:09:12 UTC – Details)
Product description
Is Discontinued By Manufacturer : No
Product Dimensions : 2 x 2 x 5.5 inches; 5.61 ounces
Item model number : ATL-phStorage
Date First Available : August 10, 2011
Manufacturer : Atlas Scientific
ASIN : B0071AR9XI
Best Sellers Rank: #123,112 in Industrial & Scientific (See Top 100 in Industrial & Scientific) #28 in Electrolyte Solutions
Customer Reviews: 4.6 4.6 out of 5 stars 421 ratings var dpAcrHasRegisteredArcLinkClickAction; P.when(‘A’, ‘ready’).execute(function(A) { if (dpAcrHasRegisteredArcLinkClickAction !== true) { dpAcrHasRegisteredArcLinkClickAction = true; A.declarative( ‘acrLink-click-metrics’, ‘click’, { “allowLinkDefault”: true }, function (event) { if (window.ue) { ue.count(“acrLinkClickCount”, (ue.count(“acrLinkClickCount”) || 0) + 1); } } ); } }); P.when(‘A’, ‘cf’).execute(function(A) { A.declarative(‘acrStarsLink-click-metrics’, ‘click’, { “allowLinkDefault” : true }, function(event){ if(window.ue) { ue.count(“acrStarsLinkWithPopoverClickCount”, (ue.count(“acrStarsLinkWithPopoverClickCount”) || 0) + 1); } }); });
One 125ml (4oz) pH / ORP Electrode Storage Solution
Protects pH / ORP Probes From Drying Out
Works with all pH & ORP Probes
Standardized against NIST-Certified References
2 year Shelf Life at Room Temperature
Customers say
Customers find the storage solution works well and offers good value for money. They appreciate its quality, with one customer noting it keeps the sensor constantly submerged, while another mentions it’s perfect for calibrating PH pens. The OCR quality receives positive feedback, with one customer mentioning it keeps electrodes in prime condition. The durability receives mixed reviews, with one customer noting it lasts longer than other solutions while another reports issues with mold growth.
Amazon Customer –
Water chemistry
Worked as it should
Daniel France –
Does it come in 8oz or bigger
It used to come in a bigger bottle. I really like this stuff, wondering if it does.
MattGuyver –
Works great used as directed. Been keeping my “cheap” ORP meter working fine.
I bought a cheaper Gain Express ORP meter and I just keep the meter tied to an upright support of a book shelf with this solution in its end cap with the cap side own. Keeps the sensor constantly emerged and running fine.
Brian Zen –
You should regularly calibrate your PH meter with quality solutions as it will drift over time as the electrode ages.
Amazon is a quick and easy source for the Atlas PH solutions and I use the 4.00, 7.00 and the storage solution. You should regularly calibrate your PH meter with quality solutions as it will drift over time as the electrode ages.This solution is used to store the electrode when not in use as the probe needs to stay wet or it becomes inaccurate and eventually unusable if it is stored dry. This solution works well, although once opened and stored over a long period of time, somewhere in the 12 month area the solution will begin to grow some sort of mold or bacteria. This would be true of most neutral fluids and is not a fault of the solution itself. Just know that once opened to keep an eye on it and replace it once it starts looking dirty or funky.
Clay –
keeps my pen safe
I use this for my digital pen and for storing my tank sensor when I’m doing reservoir changes. The 250ml bottle will last for a decently long time making it great value for the money.
Carolyn –
Great storage fluid.
This is a must have if you have a nice ph pen that you want to take care of.
Jake Smith –
it’s the best I’ve found
I keep a bottle in my work van and top off the lid for my pH meter weekly. It keeps my tips clean and seems to last longer than other solutions I have tried.I use pure solutions for calibration so can’t speak for that use. As for storage, it’s the best I’ve found.
CompotentConsumer –
Keepts OCR and Ekectrode in prime condition, wish it also cleaned..
Never ever had issue, recalibrate probe every month had current inplace over two years manages a ph drift of .07 in a month.