Extech SDL500-NIST Handheld Thermohygrometer, ±3 % Accuracy, +2372°F Max, 95%RH Max

The FLIR Hygro-Thermometer/Datalogger is a versatile device that records data on an SD card in Excel format, allowing for easy transfer to a PC for analysis.

Adjustable data sampling rate from 1 to 3600 seconds
Stores 99 readings manually and 20M readings via SD card
Record/Recall MIN and MAX readings for reference
Data Hold plus Auto power off with disable function for convenience