The Traceable WD-94460-09 Excursion-Trac Datalogging Thermometer can easily monitor temperatures overnight or for any time period — minimum and maximum temperatures are stored until the memory is cleared. Set high and low alarms in 1° increments; alarm sounds when temperature rises above or falls below set points. The alarm tracking feature stores data for up to 10 different alarm events detailing when the alarm state occurred, as well as when the unit returned within range. Alarm state indicator includes visual LEDs, audio alerts, and flashing LCD segments.

The WD-94460-09 comes with bottle probes filled with nontoxic glycol solution, eliminating the possibility of contamination from mercury. Solution is GRAS (generally recognized as safe) by the FDA. The solution filled bottle simulates the temperature of other stored liquids and eliminates the rapid temperature fluctuation caused by opening the refrigerator/freezer door.

Transfer data recorded in a CSV format to any computer via a USB flash drive—no software is required. Simply clear memory after downloading data to USB drive. Unit continues to record new data while downloading old data. Other status indicators include low-battery, memory full, USB data transfer, and active alarm state. All probes are attached to a 10-ft (3-m) microcable that permits a door to close on it.

Traceable Products have an individually-numbered Traceable® Certificate provided with each unit, that assures accuracy from our ISO/IEC 17025:2017(1750.01) calibration laboratory accredited by A2LA. It indicates traceability of measurements to the SI units through NIST or other recognized national measurement institutes (NMI) that are signatories to the CIPM Mutual Recognition Agreement. Each product goes through an intense vetting process before it can carry the Traceable name, thus saving users both time and money by not having to calibrate separately.