Digi-Sense, 37803-84, Traceable Refrigerator/Freezer Digital Thermometer with Memory Card and Calibration, NIST CertificateFeatures with all optional accessories:Easily transfer data using an SD card from your meter to a PCGet accurate, reliable measurements with included NIST-traceable calibrationSD memory card can store up to 5.9 million readingsAdjustable data logging sampling time settable from one second to 12 hoursMaximum and minimum readings can be recalled or stored for later useIncludes:SD memory cardUSB memory card readermagnetic mounting stripshook and loop mounting stripsbench standpower adapterthree AA batteriesNIST-traceable calibration certificate with data.These thermometers record data on to a standard SD memory card instead of built-in memory - the advantage being that when the memory on the SD card is full, the SD card can be simply exchanged out for unlimited data storage. The data is provided in a text report that includes date, time of day and readings of sensors and may be sent to any spreadsheet or database. The unique 4-line display simultaneously shows external probe temperature, ambient temperature, internal humidity and time of day. An audible and visual alarm alerts you when temperature levels are higher or lower than the programmable set points. User-settable parameters include date, time, sampling time, temperature unit of measure, high/low alarm set points and auto power off. Traceable products are calibrated to NIST-traceable standards and ready to use as soon as you receive it. Each product goes through an intense vetting process before it can carry the Traceable name and it includes NIST-traceable certification. This means that a 17025-accredited calibration test lab has confirmed that the product meets or exceeds all stated specifications, saving you both time and money by not having to calibrate separately. NIST-traceable calibration also helps you meet quality standards and regulatory compliance for ISO, FDA, cGMP, VFC, CAP, CLIA and Joint Commission requirements.Comes with a sealed bottle sensor that is insulated from rapid temperature changes such as when a refrigerator door is opened.