The Traceable Excursion-Trac Dual Zone Temperature Monitoring & Data Logger Kit provides accurate temperature readings, ideal for monitoring two temperatures while storing vaccines or other important samples. The data logging feature monitors the high and low readings in 1 minute intervals and is capable of storing over 500,000 data points. Memory on the unit can be cleared after downloading data to a USB stick. VeriCor is a proud distributor of Traceable products. Each Data Logger includes a unique Calibration Certificate. 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.