PINPOINT ORP (Redox) 400 Calibration Fluid

PINPOINT 400 ORP/REDOX Calibration Fluid contains a precise 400mV measurement of calibration solution. Occasional retesting with this fluid will keep PINPOINT ORP/REDOX probes accurate as well as help determine if the probe is ready for replacement.

PINPOINT 400 ORP/REDOX Calibration Fluid is sold in a single use packets.