Speedtech Instruments SM-28
Skymaster Weather Meter

The Speedtech Instruments SM-28 Skymaster Weather Meter allows you to track weather in the palm of your hand! Radio and television reports cover a large area, but Skymaster's data is specific to your location. Unlike many other units, the jackknife case gives you the most accurate measurements - your hand's heat/moisture won't influence the environmental sensors. The Honeywell humidity sensor and the Swiss-made barometer can be easily re-calibrated, and the unit has a storm audio alarm if the barometric pressure rises or falls 6 millibars over 3-hrs. Skymaster has a tripod fitting, is water resistant and floats. For the most precise measurements, it can be used with Speedtech's wind tunnel (model SM-WT).

Features:

• Current wind speed
• Maximum wind speed
• Average wind speed
• Wind measurement units: knots, mph, kph, feet/minute, meters/second, Beaufort
• Current temperature (°F or °C)
• Current wind chill (°F or °C)
• Current heat index (°F or °C)
• Dew point (°F or °C)
• Relative humidity (%RH)
• Barometric pressure and
  16-hr history bar graph (inHg or hPa)
• Storm Audio Alarm
• Altitude
• Reads in tenths
• Replaceable 400 hour lithium battery
• Data hold to freeze most recent display
• Replaceable plastic impeller won't corrode
• Easy to read LCD display
• Comes with battery and lanyard
• Threaded for tripod mounting
• Unique pocket-knife design to protect unit when not in use
• Auto shutoff after 20 minutes of inactivity
• Water resistant to four (4) inches
• High visibility case
• Floats
• One (1) year warranty

• Wind speed range: .4-89 mph
• Wind speed accuracy: ±3% when aligned with winds axis
• Current wind response time: 2-second average
• Average wind speed response time over 5, 10, or 13 seconds
• Maximum wind response time: 2-second gust
• Temperature range: +5° to +122°F
• Temperature accuracy: ±2°F
• Temperature response time: 1 minute
• Dew point range: 31.2° to +155°F
• Dew point accuracy: ±3°F
• Dew point response time: 1 minute
• Wind chill range: -22° to +158°F
• Wind chill accuracy: ±2°F
• Wind chill response time: 1 minute
• Heat Index range: +69° to 155°F
• Relative humidity range: 0-99%
• Relative humidity accuracy: ±3%
• Relative humidity response time: 1 minute
• Barometric pressure range: 400 to 1100 hPa
• Barometric pressure accuracy: ±3 hPa
• Barometric pressure response time: samples every 2 seconds
• Altitude range: -900 to 9000 feet
• Power requirement: CR2032 Lithium battery (included)

Dimensions:

• Unit (closed): 5.9" x 2.1" x .85"