Profile: Shaw Moisture Meters manufactures dewpoint meters, hygrometers and moisture analyzers for the measurement of minute amounts of moisture in very dry air or gas down to one part per billion. We provide portable hygrometer for rapid moisture checks or continuous use on flowing gas or air. It indicates both dew point temperatures and water vapour to less than one part per million, on the large meter dial. As the reading is specific to water vapour, calibration is accurate for different gases.