Check the listing for details. USB Data Logging Digital Thermometer, TRACEABLE 6440, 21 CFR 11, SEE DESCRIPTION. Condition: New – Open box. Listed at 75.00 USD. TRACEABLE 6440 Memory-Loc Digital Thermometer with USB data transfer. Thermometer is new, never used. Pull tab to isolate batteries is still in place. Temperature probe is new. Probe is sealed in a bottle of nontoxic glycol. Temperture-buffered bottle sensor eliminates rapid changes like when a refrigerator door is opened. Certificate of calibration was created on 6/10/2021 and states it was due on 6/10/2023. Includes two hook and loop mounts, two magnetic mounts, power adapter with several plugs for other countries. Multi-point calibrationTemperature range -58 to 158 degrees F (-50 to 70 degrees C)Temperature accuracy +/- 0.25 degrees CTemperature resolution 0.01 degrees F USB Data TransferMin and Max AlarmBattery and Plug-in power sourceFree shipping. Will ship the same day or next business day after purchase.