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🔬 Calibrate Like a Pro, Measure Like a Boss!
The Apera Instruments AI1109 pH Calibration Buffer Solution Kit offers ultra-precise pH calibration with ±0.01 accuracy at 25°C, produced under strict ISO certifications using high-purity reagents. Featuring color-coded, double-sealed bottles with a 2-year shelf life, this kit includes three essential pH buffers (4.00, 7.00, 10.01) plus a 3M KCL storage solution, making it the ultimate choice for professionals demanding reliable, traceable calibration and electrode maintenance.
| Customer Reviews | 4.7 out of 5 stars 249 Reviews |
A**E
Must have these if you own a pH pen
Excellent value for the money saved me from buying a brand new pH pen it calibrated my pen perfectly I'm very pleased with my purchase
D**S
Excellent Calibration Solution
Excellent Calibration Solution
L**A
Reasonable price for small bottles of pH standards and KCl probe storage solution.
Ordered these to go with the Apera Instruments AI311 Premium Series PH60 Waterproof pH tester I orderd. They arrived in good order and match the standards included in the kit so no complaints.
R**D
good product
it all works well
D**.
I trust this company.
Bought other brand of of meter. It came with powder for calibration. Did not feel I got a stable reading, could not trust. These liquids made me more confident in accurate setting!
J**N
Gotta have it
If you have one of Apera PH meters and you are using it because you know it's very accurate then you need to have calibration solution on hand and use it! This takes all of the guess work out of it. Pairs great with the PH60 to keep my plants living in a comfortable soup knowing they are able to get the nutrients they deserve. As a bonus you have to have the KCI liquid anyway to store the meter. The only crazy thing to me is that when you spend $100 on a pH meter that comes with the smallest bottle of storage solution practically making you have to purchase this right after spending a small fortune on the meter feels kinda predatory towards your customers. Why not include a bottle the same size as the calibration solution included there would be plenty of room in the case for it. I get it is just another source of revenue for the company. I'll still buy it because I trust it.
C**N
Good if know how to use
Hard to get right but maybe because I'm new not sure
T**.
GOOD
No problems and performed as expected.
S**E
Mislabeled Bottles
The bottles were labelled incorrectly, otherwise 5 stars. 12.88mS solution was inside the 1413us bottle and 1413 solution was inside the 12.88 bottle. Otherwise products work as described but wasted a little bit while determining the problem. The sealed storage tray is a nice touch. And the bottles were individually vacuum sealed to prevent leakage/cross contamination during shipping.
A**R
Calibration kit in good quantity
Good kit, will last a while
S**C
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