McKesson Refrigerator / Freezer Thermometer, Digital Display, -58° to +158°F (-50° to +70°C) 1074439

Dual channel measurement with a 10-second refresh rate, accuracy of ±0.5° C and a 0.1° display resolution Certified, serialized and traceable and has been tested against a standard calibrated at the National Institute of Standards and Technology (NIST) External probe monitors refrigerators or freezer temperatures from -40 – 158° F (-40 – 70° C ) Alarm display with real time and date stamp, low / high limit settings, with visual, flashing LED light and audible beeping indicators Optional display formats for time, date, °C / °F Flip-out desk stand and magnetic and hook-and-loop attachments allow multiple mounting options