WM-300 WindMate with Wind Direction and Lifetime Calibrated Humidity

The WM-300 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 WM-200, it 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 WM-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 temp, wind speed, relative humidity and sun intensity on the human body and is superior to Heat Index.

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%. 2-Year Warranty.

Features:

• Current, maximum wind speed
• Average wind speed over 10 seconds
• Wind direction in degrees & compass points
• Calculates cross wind, head/tail wind
• Use as a bearing compass
• Temp/windchill/relative humidity/wet bulb/dew point/Delta T
• Backlight
• Choose any measurement unit
• Reads in tenths
• Replaceable 400-hr Lithium battery
• Easy to read LCD
• Swiss-made impeller components
• Swiss humidity sensor is lifetime calibrated
• USA fluxgate compass
• Threaded for tripod mounting
• Unique pocket-knife design to protect unit when not in use
• Comes with adjustable lanyard
• Water resistant
• Floats
• 2 year warranty

Specifications:

ACCURACY:
Wind +/- 3% when aligned with winds axis
Temp/Windchill +/- 1.8° F
Compass +/- 2°
Relative humidity +/- 3%
Wet bulb & dewpoint +/- 3.6

RANGE:
Wind .8-89 MPH
Temp -20° to 158° F
Windchill -50° to +50° F
Compass 0 to 360
Relative humidity 5% to 95%
Wet bulb 32° to 100° F
Dew point -20° to 158° F

RESPONSE TIMES:
Current & maximum wind 1-sec
Avg wind over 10-secs
Temp 1-minute * Windchill 1-sec
Wind direction & compass 1-sec
Cross/head/tail wind 5-sec
Relative humidity, wet bulb, Delta T, dew point 1-minute

OPTIONAL UNITS: Knots, MPH, KPH, Ft/Min, M/Sec, Beaufort ° F or ° C

POWER: CR2032 Lithium battery (included)

MEASURES: 5.5 x 1.75 x .75 (closed)

WEIGHS: 3.4 oz