RFAX200J Diligence WiFi Air Probe (2m Lead) 
Description
Test and validate the calibration accuracy of your Thermistor Instrument with the 9321 Thermistor Prover Box. The 9321 Thermistor Prover generates a low voltage to simulate four preset (USDA Compliant) temperatures. Temperature settings for the 9321 are -25°C, 0°C, 20°C and 60°C. 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.
