Another American Marine first. ORP/REDOX calibration fluid. With a precise measurement of 400mV, this calibration fluid is included with everyPINPOINT®ORP MonitorandPINPOINT®ORP Controller. Occasional retesting with this fluid will keep your readings dead-on accurate. Also very useful to determine if an ORP/REDOX probe is ready for replacement.
Sold as individual pouches.
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