Dew Point Transmitters for Low Dew PointsE+E dew point transmitters are suitable for installation in compressed air systems and pipelines with an operating pressure of up to 100 bar (1450 psi) and precisely measure the dew point temperature down to -60 C Td (-76 F Td).Dew-point transmitters are calibrated to measure dew point against a chilled mirror reference hygrometer at various dew-point temperatures across their range. The more calibration points provided across the range provides a guarantee of accuracy across that range.