Advanced Generation of Intrinsically Safe Portable Dewpoint Hygrometers

The most responsive and reliable portable hygrometer available, offering fast spot-check measurement of trace moisture content in industrial process gases and dry compressed air. The SADPmini2-Ex is certified Instrinsically Safe for use in hazardous area applications, flammable or explosives gases, to ATEX, IECEx and cULus.

The rugged, lightweight construction enables measurement in the toughest of environments while the ultra-high capacitance sensor gives unsurpassed accuracy, sensitivity, speed of response, repeatability and long term stability.

SADPmini2 Intrinsically Safe Certification

SKU: SADPmini-Ex Category:


Alpha Moisture Systems has over 25 years of experience in the development, manufacture, supply and service of portable dewpoint hygrometers. Our dewpoint meters are in use in laboratories and industrial processes in almost every country in the world. We are proud to be a vital suppler to the oil & gas, petrochemical, power generation, medical, semi-conductor, pharmaceutical, aerospace, metrology, research laboratories, plastics, nuclear and many other industries.

Our most advanced development yet is the SADPmini2-Ex. This recently launched dewpoint analyser sets a new industry standard in fast, accurate and reliable measurement of trace moisture in industrial process gases and dry compressed air. Designed for use in hazardous areas and certified intrinsically safe to ATEX, IECEx and UL standards, the SADPmini2-Ex is ideal for spot check measurement in the toughest of industrial environments.

The strong and rugged IP66 housing incorporates an ultra-high capacitance sensor which offers unparalleled sensitivity, speed of response, repeatability and stability. The unparalleled speed of response for spot checking is made possible by the unique desiccant head assembly design which ensures the sensor is kept very dry, to low ppb levels, prior to measuring moisture content of the sample gas. Our unique autocalibration function allows immediate verification of the system, minimising downtime and calibration costs. The SADPmini2-Ex dewpoint hygrometer is lightweight and genuinely portable, with a rechargeable lithium-ion battery offering in excess of 150 hours of continuous use on a single charge.

Incorporating the latest technology, the SADPmini2-Ex dewpoint hygromemer offers the user full control via an intuitive, easy to use menu. This allows display of measurement in two independently selectable units simultaneously. Powerful datalogging and Bluetooth connectivity are standard features. A mobile app is available for display of reading on smartphone or tablet.


Span correction facility for ensuring optimum accuracy between laboratory calibrations

LCD Display

Full colour LCD displaying multiple engineering units simultaneously, realtime graphing and screenshot features


Rechargeable lithium-ion battery offering in excess of 150 hours use in continuous operation

Selectable Units

Measurement units selectable in °C or °F and absolute values in ppm(v), ppm(w), mg/m³ or lb/MMSCF

10 Languages

Display in 10 languages: English, French, German, Spanish, Italian, Portuguese, Russian, Chinese, Japanese & Korean

Pressure Calculations

Integral pressure calculator for displaying pressure dewpoints

Data Logging

Flexible programming & data logging with capacity in excess of 300,000 data points