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Test and validate the calibration accuracy of your Thermistor Instrument with the °C Thermistor Prover Boxes. The 9321 Thermistor Prover generates a low voltage to simulate four preset (USDA Compliant) temperatures. Temperature settings for the 9321 are -25°, 0°, 20° and 60°. When the Thermistor Instrument is plugged into the Prover box with the Dual Jack Prover cord 9314, it should read the designated temperature selected with the dial.
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