HM Digital's pH buffer solution comes in powder form, so it's lightweight, takes up very little space, is inexpensive and has an indefinite shelf life.

FEATURES

• Variety pack of ORP buffer solution.
• Test kit to check the quality of your ORP electrode.
• Simple to use.
• Powder has an indefinite shelf life.

SPECIFICATIONS

Total volume: 1.0 liter. Each powder packet makes 100 ml of solution (when mixed with distilled or deionized water)
Contents: 5 packets of +92mV, 5 packets of +265mV
Extras: Includes three empty 100 ml bottles
Accuracy: +/- 0.2 ORP at 25 degrees Celsius Preparation directions included with the kit