The HD2303.0 is a portable instrument with a large LCD display. It is designed
for use in the fi elds of air conditioning, heating, ventilation and environmental
comfort. It uses hot-wire or vane probes to measure air speed, fl ow rate, and tem-
perature inside pipelines and vents. Temperature only is measured by immersion,
penetration or air contact probes. The temperature sensor used can be chosen
from the Pt100, Pt1000.