Hanna HI-77400P pH Combination Buffer Solution Kit

Hanna HI-77400P pH Combination Buffer Solution Kit 4.01 & 7.01 5 x 5 20ml sachets

Achieve accurate pH readings and check your meter and electrode is functioning correctly with Hanna HI-77400P pH Combination Buffer Solutions. Available in convenient, ready-made pH values, Hanna has a certified value calibration solution with an accuracy of +/- 0.01pH @ 25◦C for all requirements. Available in 230ml, 500ml, 1 litre, and 1 gallon bottles, plus individually sealed foil sachets containing 20ml of ready-to-use solution