Digital Refrigerator / Freezer Thermometer with Alarm McKesson Fahrenheit / Celsius -58? to +158?F (-50? to +70?C) Glycol Bottle Probe / Internal Sensor Multiple Mounting Options Battery Operated
Triple display shows current, min/max temperatures 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)
Monitors refrigerators or freezer temperatures from -40 to 158?F (-40 - 70? C )
Audible alarm indicates when the programmable low and high limits set are breached
Optional display formats for time, date, ?C / ?F
Fold-away stand, magnet and hook-and-loop attachments allow multiple mounting options 

 Brand: McKesson