New Temperature and RH Probe on the Horizon

Campbell Scientific will soon offer Vaisala’s HMP155 Temperature and Relative Humidity (RH) Probe. This new probe will eventually replace the HMP45C. Improvements over the HMP45C include a wider operating-temperature range, more-accurate RH measurements, more-accurate temperature measurements, a wider temperature-measurement range, and lower power consumption. The HMP155 is longer than the HMP45C, and uses the 41005-5 14-plate Gill Radiation Shield.