The HT-HR is a small Dual Channel High Resolution (16 bit) Humidity and Temperature data logger housed in a rugged 304 stainless steel case. The humidity and temperature sensors are housed in a 60 micron Stainless Steel filter at the top of the logger. The HT-HR mark 4 uses a Sensirion SHT15 humidity sensor giving ±2.0%RH accuracy from 10%RH to 90%RH.
The logger contains an integral internal temperature sensor which is logged separately to humidity.
Logging can be configured to: start on time, immediate start, start on condition, stop when full, loop around (overwrite oldest data).
A DLC3USB [USB] download cable (2m) is required to connect the HT-HR to a computer.