T2,3,4 and TT2,3,4 series temperature sensors/transmitters are designed for immersion or critical temperature monitoring.... Applications & FeaturesThese sensors/transmitters can be used for temperature measurement in duct air(T2/TT2), water and steam pipe(T4/TT4) and outside air(T3/TT3)High performance thermistor & RTD, ensure accurate temperature measurementLight and state of art housing, easy ...