Portable Dewpoint Meters & Hygrometers


A premium hand held dewpoint meter, intrinsically safe to ATEX, IECEx and UL standards for dewpoint measurement of gases and compressed air in hazardous areas.

SDHmini / SDHmini-L

Portable dewpoint hygrometer with state of the art features and real time data logging for quick and reliable spot check measurements of dewpoint and trace moisture content.


Battery powered, compact, portable dewpoint meter incorporating the unique SHAW automatic calibration feature and desiccant dry-down technology.


Portable dewpoint meter with digital display and measuring range of -100 to +20 °C (-148 to +68 °F) for fast and reliable trace moisture measurement in hazardous environments.

Martech Controls

c/o Safety Inc.
119 Foster St, Bldg 6
Peabody MA 01960

Tel: (315) 876-9120
Fax: (315) 876-9097

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