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Speedtech Instruments WM-300

Speedtech Instruments WM-300

Portable Wind Meter
Model: WM-300
SAVE 36%
List Price: $220.00
Sale Price: $139.95
In Stock - Will Ship Tomorrow, 04/06/2020
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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 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%.


  • Current wind speed
  • Maximum wind speed
  • Average wind speed
  • Wind measurement units: knots, mph, kph, feet/minute, meters/second, Beaufort
  • Wind direction in degrees and compass points
  • Calculates cross wind, head/tail wind
  • Current temperature (°F or °C)
  • Current dew point (°F or °C)
  • Current wet bulb (°F or °C)
  • Current wind chill (°F or °C)
  • Current relative humidity (%RH)
  • Current Delta T
  • Exclusive® patented Comfort Index™
  • USA fluxgate compass
  • Use as a bearing compass
  • Replaceable 400 hour lithium battery
  • Swiss-made impeller components
  • Lifetime calibrated Swiss-made humidity sensor
  • Easy-to-read backlit LCD display
  • Auto shutoff after five (5) minutes
  • Threaded for tripod mounting
  • Unique pocket-knife design to protect unit when not in use
  • Comes with adjustable lanyard
  • Water resistant and floats
  • Two (2) year warranty
  • Wind speed range: .8-89 mph
  • Wind speed accuracy: ±3% when aligned with winds axis
  • Current wind response time: 1-second
  • Average wind response time: over 10 seconds
  • Maximum wind response time: 1-second
  • Cross wind head/tail wind response time: 5 seconds
  • Wind direction response time: 1 second
  • Temperature range: -20° to +158°F
  • Temperature accuracy: ±1.8°F
  • Temperature response time: 1 minute
  • Dew point range: -20° to +158°F
  • Dew point accuracy: ±3.6°F
  • Dew point response time: 1 minute
  • Wet bulb accuracy: ±3.6°F
  • Wet bulb range: 32° to 100°F
  • Wet bulb response time: 1-minute
  • Wind chill range: -50° to +50°F
  • Wind chill accuracy: ±1.8°F
  • Wind chill response time: 1 second
  • Relative humidity range: 5-95%
  • Relative humidity accuracy: ±3%
  • Relative humidity response time: 1 minute
  • Delta T response time: 1-minute
  • Compass accuracy: ±2°
  • Compass range: 0 to 360
  • Compass response time: 1 second
  • Power requirement: CR2032 Lithium battery (included)


  • Unit (closed): 5.5" x 1.75" x .75"


Average Customer Rating 4.0 4 stars (based on 2 reviews)

By Dale
From Wasilla, AK
3 stars I haven't really used it to the extent that I can comment -
Sorry !
By Blake
From Kealakekua, HI
5 stars Great insturment!
Works great, love it. I take it up Mauna Kea on my tours. People always ask the temp, wind chill, etc. now I can answer.


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