The E+E HUMOR 20 Humidity Calibrator operates on the fundamental dual-pressure reactor principle, the same technology used by national bureaus of standards for primary humidity references. This fundamental approach enables the HUMOR 20 to serve as both a laboratory-grade humidity generator and a portable reference instrument for on-site calibration requirements.

The calibrator generates relative humidity from 10 to 95% with exceptional accuracy of 0.3 to 0.9% RH. It accommodates a wide range of devices under test, including probes with diameters from 0.3 to 1 inch (8 to 25.5 mm), complete data loggers, and room-mount humidity sensors, providing flexibility for diverse calibration needs.

For operation, the HUMOR 20 requires only distilled water, clean oil-free air with a pressure of 10 bar (145 psi), and standard electrical power between 90 to 230 VAC. The instrument provides traceable calibration to international standards and is OEKD certifiable, ensuring compliance with the most demanding quality requirements.

Typical applications include calibration laboratories requiring primary reference standards, use as a reference device for quality assurance, operation in bureaus of standards for maintaining national humidity scales, and by manufacturers of measurement instruments for production testing and verification. With its fundamental measurement principle, portability, and wide operating range, the HUMOR 20 bridges the gap between laboratory reference standards and practical field calibration requirements.