The Speedtech Instruments WM-300 WindMate 300 Multi-function Wind Meter is a comprehensive instrument for agriculture, forestry, emergency management and other industry professionals. The Swiss-made humidity sensor is lifetime calibrated! In addition to relative humidity, the unit measures dew point, wet bulb, Delta T, temperature and wind chill. Like the WindMate 200, the WM-300 uses a wind vane and a USA-made fluxgate compass for digital wind direction, which also calculates crosswind and head/tail wind readings. Unlike traditional compasses, the WindMate 300 reads when held vertically and can be used for taking bearings. It also includes our AccuWeather.com patented Comfort Index™, which is the effect of temperature, wind speed, relative humidity, and sun intensity on the human body, which is superior to Heat Index.
The WM-300 can be tripod-mounted and accommodates the Model SM-WT wind tunnel accessory for very precise measurements. All WindMates meet NIST calibration standards and wind speed accuracy tested better than ±3%.