Hanna pH 4.01 Calibration Solution, 20 ml, case of 25 plant-support Great for small gardens

Great for small gardens

• 1000W 120/240 Volt Electronic Ballast

This instrument continuously monitors and displays the values of a solution on an easy to read set of LCDs

• Wild Boar

000 hour life to L70

Hanna pH 4.01 Calibration Solution, 20 ml, case of 25 plant-support Great for small gardensHanna's Buffer solutions are made from established formulas and are standardized with a pH meter that is calibrated to NBS NIST primary standard buffer solutions. The 20 ml sachets are ideal for infrequent calibrations while for heavy duty applications, you can choose from the popular 230 ml, 1 liter, or 1 gallon containers. Now the pH 4 buffers carry lot #, expiry date as well as pH C chart on every bottle. HI 7004L C and HI 8004L C are also supplied