Just plug the USB data logger into your PC to export temperature and humidity data reports without any additional software. It is a good choice for monitoring and recording temperature and humidity data during cold chain transportation or frozen food storage. 1.5M external probe allows monitoring and recording temp and RH in hard-to-reach places. The magnet design makes installation easy and holds securely, with strong magnets on the back for support when placed on the refrigerator. External sensor measuring range: 0% to 100% RH, -40℃ to 85℃; Temperature:Less than 2℃ or Greater than 8℃, Humidity: Less than 40% RH or Greater than 80% RH. Compliant with FDA CFR Part 21. With the visual LCD display, you can easily track the current temperature and humidity values. Press the "START" button to get information about maximum/minimum temperature/humidity, record quantity. Supports to mark the recorded data(6 groups). Supports to set parameters(such as, calibration, log interval, etc.) through free software as needed. It also supports comparison of temperature and humidity data graphs across multiple devices. Note: If you save parameter settings or restart the device, the data stored in the logger will be cleared (but they are still saved in the software). Color:As Shown Material:plastic Package Contents: 1 * temperature data logger