McKesson Brand - Datalogging Refrigerator / Freezer Thermometer with Alarm McKesson Fahrenheit / Celsius Ambient -40 to +125°C (-40°F to 257°F) / Sensor -40° to 50°C (-40°F to 122°F) Glycol Probe AC Adaptor / Battery Backup [1/EA]

NIST/ILAC-MRA traceable; traceable certificate supplied. Log 24 million readings on 2G micro SD card. Retrieve data from logger with removable SD memory card or by USB cable to PC. Logger records interior/exterior minimum/maximum temperatures into memory. Battery life approximately 10 months in continuous operation with no alarm triggered. Exceeds government (CDC / VFC) vaccine monitoring guidelines.