






๐งช Calibrate like a pro, measure like a boss.
This 8oz pH Calibration Buffer Solution Kit features highly accurate, NIST-certified pH 4.00 and 7.00 buffers, paired with a 4oz 3M KCL storage solution to maintain electrode performance. Designed for all pH meters, it offers a 1-year shelf life, color-coded packaging, and safety compliance, making it an essential tool for precise, reliable pH measurements in professional settings.




| ASIN | B01MSZ4Q7Z |
| Batteries Required? | No |
| Batteries included? | No |
| Customer Reviews | 4.5 4.5 out of 5 stars (304) |
| Date First Available | 14 Dec. 2016 |
| Item Package Quantity | 1 |
| Item Weight | 255 g |
| Item model number | AI1108 |
| Manufacturer | Apera Instruments, LLC |
| Material | HDPE (High Density Polyethylene) |
| Measurement System | US |
| Part number | AI1108 |
| Product Dimensions | 5.08 x 5.08 x 20.32 cm; 255.15 g |
| Style | pH 4& 7 (8oz.) |
T**N
Precision
Another excellent product I like to use it as a backup or if I just want to doublecheck my charts thank you so very much
K**C
No issues in use. Storage solution is a bonus.
No issues. As expected. Storage solution is a nice addition. Tested against freshly cal'd unit and spot on.
M**N
A Great Package to Maintain Your pH Meter
Well packaged and excellent price.
A**Y
Apera Calibration Solution could not be easier to use + itโs in code until Oct- 2025.
Had an older model Ph-80 that sat in a drawer for a year and had a dried out wick, Soaked it in the storage solution for 20 min cleaned it with distilled water calibrated first with 4.0 and it hit dead nuts then the 7.0 same thing. Fahrenheit was right at 67.0 degrees and I was happy I know these solutions are expensive and I donโt know why but it was the best deal on Amazon and it worked for me your mileage may vary but I had to give a positive review. The only thing I didnโt like is it was shipped in a Bag not an over Box for protection and I hate that for sure come on Amazon.
R**U
Establish confidence and validate your measurements... it's good insurance
Ordered the calibration kit with the storage solution. The kit was shipped promptly, packed well and arrived in a couple days. Having the different colors in the liquids does make it easier to work with and less chance of making errors. There's plenty of solution for my needs to maintain a commercial pool monitoring system. The storage solution is also being used for my ORP probe. The pH 7.0 reference can also be used to validate my Taylor daily pool water test kit. The acidic solution came with an extra foil seal to prevent leakage... good idea. This order was for two, so I'm giving the other away as a "gift" to a friend in the industry.
Trustpilot
1 week ago
4 days ago