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Kestrel^{^®} 4100 Pocket Air Flow Tracker

This hand held unit measures everything you need to know on a job site. Air flow is measured 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 %; and additional measurements of dewpoint, wind chill and heat stress index. Other features include: Data Logger (automatic and manual), minimum, maximum and average values, a multi-function 3-line display, a replaceable impeller, a graphical display for logged values, and a backlight for low light conditions. Comes complete with neck and wrist lanyards, a protective pouch and 2 AAA batteries. Backed by a 5-year warranty from the Manufacturer. Assembled in the USA. Minimum wind speed: 0.7 mph (0.6 knots, 1 km/h, 0.3 m/s, or 59 fpm). Maximum wind speed: 89 mph (78 knots, 144 km/h, 40 m/s, or 7,877 fpm). Wind speed accuracy: �3%. Update: 1 second. Temperature and wind chill accuracy: �1°C. Wind chill factor resolution: �1°C. Relative humidity accuracy: �3% from 5% to 95%. Dew point temperature accuracy: �2°C. Heat index accuracy: �3°C*. Temperature resolution: �0.1°F (�0.1°C). Altitude and density altitude range: N/A. Operating temperature: -4°F to +140°F (-20°C to +60°C). Temperature range: -20°F to +158°F (-29°C to +70°C). Accurate readings can be taken by keeping the unit warmer than -4°F (-20°C) and exposing it for the minimum time necessary (less than one minute) to take a reading. Impeller: 1" diameter, sapphire bearings, lightweight. Temperature sensor: hermetically sealed precision thermistor. Humidity sensor: solid state silicon capacitive sensor. Display: graphical backlit LCD. Sealing: electronics enclosure IP67 water resistant to 3 ft., Floats. Battery: two AAA alkaline batteries (included). Battery life: 300 hrs. Dimensions: 5" x 1.8" x 1.1".

Need help selecting the right Kestrel for you? Click here to use our Kestrel Product Selector.

*Humidity sensor can be recalibrated in the field. Accurate readings may be taken beyond these temperature limits by exposing the unit for the minimum time necessary to take and record measurements.

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Kestrel^® 4100 Interface Kit Allows data to be downloaded for long-term storage, in-depth analysis and detailed charting. The included software is easy to use and saves the data in a comma delimited text file. System Requirements: PC with USB Port, Windows 3.1 or higher.

	Qty	Item #	Description	Specs	Ships	Price
		89283	Interface Kit		24 hours	$109.00

Accessories

Qty	Item #	Description	Specs	Ships	Price
	89188	RH Calibration Kit		24 hours	$89.00
	89181	Replacement Impeller		24 hours	$18.95
	2362	AAA cell, pack of 4		24 hours	$3.25
	89198	Case		24 hours	$19.75
	89547	Portable Vane Mount		2+ weeks	$69.00
	89548	Portable 12˝ Tripod with Case		2+ weeks	$25.00

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*Humidity sensor can be recalibrated in the field. Accurate readings may be taken beyond these temperature limits by exposing the unit for the minimum time necessary to take and record measurements.


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Sales: 800-647-5368
Tech Support: 800-430-5566

Customer Service: 800-752-8460
International: 601-354-3565

Kestrel® 4100 Pocket Air Flow Tracker

Kestrel^{^®} 4100 Pocket Air Flow Tracker