The HSE-1 from Ohmic Instruments Co., Easton, MD, lets you display, monitor, and log many of the key parameters of resistive and hybrid capacitive humidity sensors via a computer's USB port. The unit provides a large screen display of the RH, dry bulb temperature, and dew-point temperature readings; you can also display and log other selectable functions of 12 different sensors. Programmed software includes the company's resistive and hybrid capacitive sensors, such as Honeywell's HIH-4000 Series, and you can select the sensor model, temperature, chart display, and logging features. The unit includes custom software, a USB cable, 2 RH sensors, a thermistor, and a manual.
Humidity Sensor Evaluator from Ohmic Instruments
Ohmic Instruments Inc.