Speedtech Instruments WM-350

Speedtech Instruments WM-350

Portable Wind Meter
Model: WM-350
SAVE 36%
List Price: $330.00
Sale Price: $207.95
In Stock - Will Ship Tomorrow, 09/19/2019
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The Speedtech Instruments WM-350 WindMate 350 Multi-Function Weather Meter! This is a prize-winning, comprehensive weather monitor, which gives full environmental data specific to your location and includes a 48-hr history for every function, hour-by-hour and in a bar graph. The USA fluxgate compass reads when held vertically, measuring not only wind direction in degrees and compass points but also calculating crosswind and head/tail wind. The compass can be calibrated for variation/declination and deviation. In addition to wind speed/direction, temperature, barometric pressure, altitude, and relative humidity, the WindMate 350 featurs wind chill, Wet Bulb, Dew Point, Delta T and Density Altitude. The Speedtech WM-350 also provides an accurate weather forecast and has an audio storm alarm that alerts you to weather changes, even if the unit is off!

The WindMate 350 also features Speedtech's exclusive AccuWeather.com®, patented Comfort Index™, which is the effect of temperature, relative humidity, wind speed and sun intensity on the human body. The formula can be adjusted based on sun intensity and is superior to Heat Index. The case is water resistant, shockproof, and the jackknife design allows for the most accurate measurements, as heat and moisture from your hand won't interfere with any sensors. The WM-350 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%.


  • Time and date
  • 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
  • Barometric pressure (inHg or hPa)
  • Weather forecast
  • Storm Audio Alarm
  • Altitude (feet or meters)
  • Density altitude (feet or meters)
  • 48-hr history for all functions
  • Exclusive AccuWeather.com® 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 EL (ElectroLuminescent) backlit LCD display
  • Auto shutoff after five (5) minutes (can be disabled)
  • Threaded for tripod mounting
  • Unique pocket-knife design to protect unit when not in use
  • Comes with adjustable lanyard
  • Water and shock resistant
  • 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: ±2°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: ±2°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
  • Barometric pressure range: 8.86 to 32.48 inHg
  • Barometric pressure accuracy: ±.05 inHg
  • Barometric pressure response time: samples every 2 seconds
  • Altitude accuracy: ±50 feet
  • Altimeter range: 6000 to 30,000 feet
  • Altitude response time: 1-second
  • Density Altitude accuracy: ±246 feet
  • Density altitude range: -49° to 257°F
  • 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 1 review)

By Morgan
From Rising Star, TX
4 stars good buy
meter is quick and easy to use, checked some of the features versus other instruments and found meter to be quite accurate. Only fault found is the weather vane has a little too much vertical play which requires a little more time and effort to find the true headwind direction. Would certainly buy again and recommend to a friend. WeatherShack had more brands and models to choose from and delivery was very quick. Thanks.


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