Kestrel 4300 Construction Weather Tracker

Kestrel 4300 Construction Weather Tracker
SKU NK4300
Quantity
Market price: $349.99
Our price: $269.95

Kestrel 4300 Construction Weather Tracker

The NEW Kestrel 4300 is an All-Purpose Construction Weather Tool for measuring and logging relevant weather conditions.
 
 
Calculates Evaporation Rate - The New Kestrel 4300 Construction Weather Tracker measures and displays evaporation rate — a function of relative humidity, temperature and wind speed.
 
Evaporation rate is a critical environmental indicator that concrete contractors use to ensure they avoid plastic shrinkage cracks in concrete installations especially concrete flatwork.
 
Plastic shrinkage cracks occur when the surface of the concrete dries too quickly and shrinks before the bed has cured enough to resist cracking. This is especially relevant in specialty applications like decorative concrete, Ready Mix Concrete (RCM) and Tilt-up concrete. Plastic shrinkage cracks can be prevented by properly assessing the weather and the fresh concrete conditions.
 
Previously, construction contractors used a Kestrel Meter to measure the relevant conditions, then referenced an American Concrete Institute chart to calculate the evaporation rate. The new Kestrel 4300 Construction Weather Tracker does the work for them! The user simply enters the concrete temperature (obtained via an infrared thermometer or probe thermometer*) and the 4300 calculates the evaporation rate instantly.
 
For maximum accuracy when measuring the evaporation rate:
  1. Measure the concrete temperature via an infrared or probe thermometer
  2. Enter the concrete temperature into the Kestrel
  3. Position the unit facing into the wind, 20 inches above the concrete
  4. Shade the Kestrel's thermistor (temperature sensor) so it is not in direct sunlight
For the best accuracy, use the Kestrel's convenient averaging mode to average the evaporation rate over the recommended 6-10 seconds.
 
Many construction applications require documentation of conditions, which is quick and easy with the Kestrel PC Interface and accompanying software. Use the 4300's 1800 data-point log to document that work was done during the appropriate conditions, then upload the data to a PC with the Kestrel PC Interface. The Kestrel Communicator Software makes long-term storage, in-depth analysis and detailed charting of stored data a breeze.
 
 
Kestrel 4300 Meter Features:
  • Waterproof and floats
  • Backlight for low light conditions
  • Data logger (automatic and manual)
  • Customizable data storage – 3600 data points
  • Multi-Function 3-line display
  • Convenient averaging mode
  • Data charting
  • Humidity sensor can be recalibrated in the field with our Relative Humidity Calibration Kit.
  • User-replaceable impeller
  • Flip-top impeller cover
  • 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
  • 5-year warranty
  • Assembled in the USA
Kestrel 4300 Weather Conditions Meter Includes:
  • Soft carry pouch
  • Neck lanyard
  • Batteries – 2 AAA
  • Kestrel Certificate of Conformity - Every Kestrel is individually calibrated to NIST-traceable standards
Kestrel Reliability and Quality is Now Backed by a
5-Year Warranty!

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