Products

KES0006-K4500 Weather Meter (Optional wind direction/recorder))

Category: Airflow meters

The K4500 Weather Meter measures/features

  • Heading (true & magnetic)
  • Wind direction
  • Crosswind
  • Headwind/tailwind
  • Altitude
  • Pressure trend
  • Barometric pressure
  • Wet bulb temperature
  • Relative humidity in %
  • Heat stress index 
  • Dewpoint
  • Density altitude
  • Wind chill
  • Air, water, and snow temperature °F or °C
  • Current, average, and maximum air velocity
  • Waterproof and floats
  • Time and date
  • Easy- to-read backlit display
  • Data Logger (automatic and manual)
  • Customizable data storage - 2900 data points
  • Minimum, Maximum and Average values
  • Multi-Function 3-line display
  • Humidity sensor can be recalibrated in the field with our Relative Humidity Calibration Kit.
  • Exterior temperature, humidity, and pressure sensors for fast and accurate readings
  • Customize screens to display user-selected measurements
  • Graph and recall trends
  • User-replaceable impeller
  • Flip-top impeller cover allows use of other functions while protecting the impeller
  • Data charting
  • Upload to a computer (with optional interface)
  • Five languages (English, French, Spanish, German, and Italian)
  • US Patent Nos. 5,783,753 and 5,939,645 and 6,257,074
  • Assembled in the USA
 

K4500 Includes

  • Soft carry pouch
  • Neck lanyard
  • Batteries - 2 AAA

Technical Information:

  • Dimensions: 5.0 x 1.8 x 1.1 in. / 12.7 x 4.5 x 2.8 cm
  • Weight: 3.6 Ounces / 102 Grams
  • Wind Speed (sample every 1 second)
    • 0.4 to 40 m/s (0.1 resolution, 3% accuracy)
    • 59 to 7,877 ft/min (1 resolution, 3% accuracy)
    • 1.0 to 144 km/h (0.1 resolution, 3% accuracy)
    • 0.8 to 89 mph (1 resolution, 3% accuracy)
    • 0.6 to 78 kt (0.1 resolution, 3% accuracy)
    • 0 to 12 Beaufort (0.1 resolution, 3% accuracy)
  • Temperature (sample every 1 second)
    • -20.0 to 158.0 °F (0.1 res, 1.8 °F accuracy)
    • -29.0 to 70.0 °C ( 0.1 res, 1.0 °C accuracy)
  • Relative Humidity (sample every 1 minute)
    • 0.0 to 100.0 % (0.1 res, 3.0 %RH accuracy)
  • Barometric Pressure (sample every 1 second)
    • 8.86 to 32.48 inHg (0.01 resolution, 0.05 inHg accuracy)
    • 300 to 1100 hPa / mb (0.1 resolution, 1.5 hPa / mb accuracy)
    • PSI (0.1 resolution)
  • Altitude ( sample every 1 second)
    • -6000 to 30000 ft (1 res, 50 ft accuracy)
    • -2000 to 9000 m (1 res, 15 m accuracy)
  • Wind Chill (sample every 1 second)
    • -49.0 to 257.0 °F (0.1 res, 1.8 °F accuracy)
    • -45.0 to 125.0 °C (0.1 res, 1.0 °C accuracy)
  • Heat Index (sample every 1 minute)
    • 0.0 to 100.0 %RH, -49.0 to 257.0 °F (0.1 resolution, 3.6 °F accuracy)
    • -0.0 to 100.0 %RH, -45.0 to 125.0 °C (0.1 resolution, 2.0 °C accuracy)
  • Dew Point (sample every 1 minute)
    • 0.0 to 100.0 %RH, -49.0 to 257.0 °F (0.1 resolution, 3.6 °F accuracy)
    • 0.0 to 100.0 %RH, -45.0 to 125.0 °C (0.1 resolution, 2.0 °C accuracy)
  • Wet Bulb (sample every 1 minute)
    • -49.0 to 257.0 °F, 0.0 to 100.0 %RH, 8.86 to 32.48 inHg (0.1 resolution, 3.6 °F accuracy)
    • -45.0 to 125.0 °C, 0.0 to 100.0 %RH, 300.0 to 1100.0 hPa (0.1 resolution, 2.0 °C accuracy)
  • Density Altitude ( sample every 1 second)
    • FT: -49.0 to 257.0 °F, 0.0 to 100.0 % RH, 8.86 to 32.48 inHg (1 res, 246 accuracy)
    • M: -45.0 to 125.0 °C, 0.0 to 100.0 %RH, 300.0 to 1100.0 hPa (1 res, 75 accuracy)
  • Power requirements: 2 AAA Alkaline batteries (included)
  • Battery life: ±400 hours, depending on backlight use

Dimensions:

  • 5.0" x 1.8" x 1.1" (12.7cm x 4.5cm x 2.8cm)

Review:

We run various tests at my work that need a full weather report for (Density Altitude being the big one that very few others offer). As our old system was old and dying, I ordered up this as a backup. It has since become our main one for a couple of reasons.

1: Quick sample rate. I'm not sure how old our old system was, but this one samples MUCH faster. If left in direct sunlight, it will get skewed a bit with its sampling, but it comes back to normal much faster

2: Built in wind speed. It does have a little cover that goes over it when not being used, but having windspeed as part of the equipment means one less piece of equipment you need to carry. It is a bit tricky to use though, as you have to figure out which direction the wind is coming from (the system can tell you) and then face it directly into the wind to get the reading. Being a little to the left or right of the wind has an effect on the reading.

3: Size. This thing is about the size of an old Nokia phone and is VERY light if you need to travel with it.

Overall if you need a compact sytem to track just about everything, this thing will do it for you :)

 

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