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Ambient Weather WM-4 Handheld Weather Station w/ Windspeed, Direction, Temperature, Humidity, Compass, Dew Point, Heat Index, Psychrometer
Gear Review

Ambient Weather WM-4 Handheld Weather Station w/ Windspeed, Direction, Temperature, Humidity, Compass, Dew Point, Heat Index, Psychrometer

 
	 Ambient Weather WM-4 Handheld Weather Station w/ Windspeed, Direction, Temperature, Humidity, Compass, Dew Point, Heat Index, Psychrometer

Page Type: Gear Review

Object Title: Ambient Weather WM-4 Handheld Weather Station w/ Windspeed, Direction, Temperature, Humidity, Compass, Dew Point, Heat Index, Psychrometer

Manufacturer: Ambient Weather

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Page By: redsplashman23

Created/Edited: Oct 28, 2011 / Oct 28, 2011

Object ID: 7857

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Product Description

From Ambient


Ambient Weather WM-4 Handheld Weather Station w/ Windspeed, Direction, Temperature, Humidity, Compass, Dew Point, Heat Index, Psychrometer
The Ambient Weather WM-4 is a comprehensive handheld wind meter, directional compass, heat index monitor and psychrometer, all in one compact, portable, rugged package.

The WM-4 measures wind speed, wind direction, temperature, relative humidity and compass direction, and calculates wind gust, dew point, wet bulb and dry bulb temperature, Delta T, wind chill and heat index.

It has a USA-made fluxgate compass for precise digital wind direction measurement, and it can also be used to calculate crosswind & head/tail wind readings with the built in wind vane.

Unlike traditional compasses which require leveling, the WM-4 reads when held vertically and can be used to take a bearing on a distant landmark or reference location.

The jack knife case design protects the unit, and allows you to hold the case while taking precise temperature meaurements, avoiding false readings from your hand temperature.

The WM-4 can be tripod-mounted and accessories include a wind tunnel for very accurate directional measurements, replacement impeller, soft belt carrying case, and humidity calibration kits to insure the humidity is within specified range.

Features

From Ambient

  • 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 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 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

    Specifications

    From Ambient

  • 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

    Links

  • Ambient Weather
  • Amazon

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