Kahn manufactures and distributes a full line of precision hygrometers using the most accepted, proven technologies. Kahn hygrometers measure moisture in a broad variety of gases from vacuum to 6000 PSIG. Featuring more than 10 models, the Kahn product line can measure dewpoints from -120°C to +90°C (-184°F to 194°F).

Optical Chilled Mirror Hygrometers

The Ultimate Standard

These instruments thermo-electrically chill a mirror surface until dew or frost begins to form, providing the most fundamental measurement of dew or frostpoint. Formation of dew or frost is precisely monitored by an electro-optical system; measurements are traceable to national and international standards. To account for the buildup of contaminants on the mirror surface, Kahn's system incorporates Automatic Balance Compensation (ABC). Periodically, the instrument automatically heats the mirror to vaporize the accumulated dew or frost, recalibrates itself for altered reflectivity due to contaminants, then returns to normal measuring. 

 Optidew Optical Dewpoint and RH Transmitter

• Dewpoint, temperature and RH measurement
• Fundamental method of dewpoint and RH measurement
• Range:-76°F to +194°F; 0.5 to 100% RH
• Accuracy of ± 0.36°F
• Single and two stage sensor options
• Dual 4-20mA outputs; Alarm relay
• NEMA 4 industrial housing
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Optisure Optical Hygrometer

• Dewpoints from -76°F to +104°F
• Fundamental method of dewpoint measurement
• Accuracy to ± 0.18°F
• Dynamic Contamination Correction (DCC)
• 4-20mA, 0-20mA, and 0-1 VDC outputs
• USB, MODBUS RTU digital outputs
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