This AirflowTest-Master anemometer from Laserliner features an integrated sensor for measuring ambient temperature, relative humidity and dew point calculation. Equipped with a host of excellent features, including an internal memory for saving measured data USB interface and PC software for real-timelogging. The illuminated, clearly arranged display shows both the permanently visible ambient temperature and relative humidity. * Large impeller: 65mm * Min/nax display * Hold function - current measured value is held in the display * 1/4″ tripod connection for long-term measurement * Measurement in °C or °F * Includes carrying case, software, USB cable and battery * Manufacturer's part 082.140A