Speedtech Instruments WM-300
WindMate 300 Multi-Function Wind Meter

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%.

Features:

• 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
• 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)

Dimensions:

• Unit (closed): 5.5" x 1.75" x .75"