MA9020 is a lab grade ORP 200-275 mV solution certified to meet the range. MA9020 is used to check the health and accuracy of an ORP electrode.

Milwaukee solutions are designed to help you achieve reliable and repeatable ORP measurements.

• OPR 200-275 mV solution value (230 mL).
• Fundamental for the correct use of ORP electrodes and for obtaining the most accurate and reproducible readings.
• Sealed against light with air tight, tamper proof cap.
• Ideal for fast accuracy check.
• Simply open, pour into a beaker or container and insert the tester or electrode to start the ORP mV check process.