For use with the HMI-41 Precision ThermoHygrometer*
Designed for use with the HMI-41 Precision ThermoHygrometer, the HMP-42 Probe provides unparalleled measurement capabilities. With a probe head diameter of only 4 mm and a length of 9.2 in., this remarkable probe structure is specifically designed for attaining measurements in very tight spaces such as inside walls.
