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A great tool for facility managers, field installers, and technicians, the Kestrel 4100 Pocket Air Flow Tracker takes the guess-work and calculations out of air flow measurements. Simply enter the duct shape and dimensions, hold the Kestrel 4100 in the air flow and the readings are instantly displayed. You can then review the data on the on-screen graphs or upload the data to your PC for in-depth review and graphing. The Kestrel 4100 also measures temperature, relative humidity, and dewpoint. Kestrel 4100 Pocket Air Flow Tracker - CFM made easy! 1. Select shape of duct.... 2. Set dimensions.... 3. Hold meter in air flow.... Results! That easily. No equations or calculators required! Finally, a hand held unit that measures everything you need to know on a job site. The Kestrel 4100 is the new revolution in HVAC monitoring. Winner of the ACHR News Dealer Design Awards for excellence in product design! With Bluetooth models real-time and logged data can be transferred wirelessly and automatically to a laptop or PDA, making a Kestrel 4000 series weather meter the perfect tool for virtually any job that requires quick and reliable weather data. Features * Air flow in cfm, L/s, m³/s, m³/m, m³/h * Air Velocity in ft/m, mph, m/s, km/h, kts, Beaufort * Temperature in °F or °C * Humidity in % * Additional measurements of dewpoint, wind chill and heat stress index * Data Logger (automatic and manual) * Minimum, Maximum and Average values * Multi-Function 3-line display * Impeller can be replaced without tools * Humidity sensor can be recalibrated in the field with our Relative Humidity Calibration Kit. * Graphical Display for logged values * Upload to a computer (with optional interface) * Backlight for low light conditions * Includes neck and wrist lanyards, protective pouch and 2 AAA batteries * 5-year warranty * Assembled in the USA * US Patent Nos. 5,783,753 and 5,939,645 and 6,257,074
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