HOBO by Onset MX2500-CAL-4 pH Calibration Solutions, 4.01, 475 ml, For MX2501 Data Logger

Used to calibrate the pH electrode in the HOBO MX pH Logger.

• pH 4.01 Calibration Solutions
• 475 mL bottles

The HOBO by Onset MX2500-CAL-4 pH Calibration Solutions are used to calibrate the pH electrode in the HOBO MX pH Logger.