Data Logging Thermometer (1) Stainless Steel Penetration Probe Multi-Point Calibration -58 Degrees to 158 Degrees F/-50 Degrees to 70 Degrees C Application Freezers Heating Blocks Incubators Refrigerators Water Baths Alarm Type Max/Min Resolution 0.01 Degrees F/0.01 Degrees C Probe Type (1) Penetration (2) AAA Batteries Temperature Accuracy +/-0.25 Degrees C Data-Logging Critical Environment Digital Thermometer