Thermometer, (1) Glass Bead Filled 30 mL Glass Bottle Probe, NIST-Traceable, -58 Degrees to 392 Degrees F/-50 Degrees to 200 Degrees C, Application Freezers, Incubators, Ovens, Refrigerators, Alarm Type Max/Min, Resolution 0.1 Degrees F/0.1 Degrees C, Probe Type (1) Bottle, AAA Battery, Temperature Accuracy +/-0.5 Degrees C from -20 Degrees to 70 Degrees C, +/-1 Degrees C from 70 Degrees to 120 Degrees C, +/-2 Degrees C Otherwise, Critical Environment Digital Thermometer