The Air Humidity Meter THA 10 is easy to operate with one hand thanks to its compact size, the new structure and integrated impeller. In addition to the wind speed, the Air Humidity Meter measures the temperature, humidity, dew point, the wet bulb temperature and the air volume. Average values ​​can be determined with the Air Humidity Meter from the 20 preset points. All test instruments are delivered manufacturer calibrated. You can buy ISO or NIST certification as an option.