Amprobe TR200 Temperature RH Data Logger takes both temperature and relative humidity readings in one compact size unit. With this temperature RH data logger use the included Amprobe software for recording measurements to your personal computer and set up these parameters for recording: Sample interval timing, Start/Stop, Date and Time, HI/LO Alarm Threshold, Unit Selection, and number of Memory points. Discontinued product - Replaced by Amprobe TR200A.