🔧 Elevate Your Calibration Game!
The Hanna Instruments HI7004L 4.01 pH Calibration Buffer Solution is a high-quality, 500mL solution designed for precise pH calibration. Ideal for laboratory and field use, it ensures accurate measurements and reliable performance, making it a must-have for professionals in various industries.
S**L
Should get if you need to calibrate ph machine reader
Helps calibrate the PH level because the machine I ordered wasn’t working after using this it was good, and price worthy
R**S
Great product
I have used Hanna calibration buffer solutions for years with no problems.
J**N
good ole' reliable
Works well it's reliable has a long shelf life. I've been using Hanna calibration solutions for years now and I have nothing but good to say and report about it
F**A
Excellent ,,, meets my expectations
Excellent ,,, meets my expectations
A**R
Five Stars
Good product, would buy again. Make sure you get the 7.1 buffer for a two point calibration.
J**N
Just as advertised
Ok
D**O
Great
Great
G**N
Four Stars
Great!!!!
Trustpilot
1 day ago
2 days ago
