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Kestrel^® 4500 Pocket Weather Tracker

Using a built-in digital compass, the Kestrel 4500 measures wind direction in addition to wind speed and effective crosswind, headwind, and tailwind. Simply point the instrument in the direction of the wind to instantly obtain wind speed and wind direction in degrees and cardinal compass points. Readings can be stored in the 2,000 data-set memory. Combine the Kestrel 4500 with a portable vane mount and portable tripod (each sold separately) for a data-logging weather station that rotates in even the slightest breeze and is ideal for short-term monitoring. In addition to taking wind measurements, the unit also measures air, water, and snow temperature; wind chill; relative humidity; dewpoint; heat stress index; barometric pressure; altitude; density altitude; and wet bulb temperature. Measurements are shown on the backlit display. You can easily customize screens to display user-selected measurements as well as graph and recall trends. The waterproof Kestrel 4500 floats and includes a protective pouch, neck and wrist lanyards, and 2 AAA batteries. Five-year manufacturer’s warranty. Assembled in the USA. Specifications Minimum wind speed: 0.8 mph (0.6 knots, 1.0 km/h, 0.4 m/s, or 59 fpm). Maximum wind speed: 89.0 mph (78.0 knots, 144 km/h, 40.0 m/s, or 7,877 fpm). Wind speed accuracy: �3%. Wind direction accuracy: �5°. Update: 1 second. Temperature and wind chill accuracy: �1°C. Wind chill factor resolution: �0.1°C. Relative humidity accuracy: �3% from 5% to 95%. Dew point temperature accuracy: �2°C. Heat index accuracy: �2°C*. Temperature resolution: �0.1°F (�0.1°C). Barometric pressure accuracy: �1.5 hPa/mb (at 25.0°C, <6,000 m). Altitude range: at 77.0°F, <19,700', max error �98' (at 25.0°C, <6,000 m, max error �30 m). Density altitude range: 32.0°F to 100.0°F, 5.0 to 95.0% RH, 8.86 to 32.48 inHg, <19,700' (0.0°C to 37.8°C, 5.0 to 95.0% RH, -2,000 to 9,000 hPa, <6,000 m). 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: polymer capacitive sensor. Display: graphical backlit LCD. Sealing: electronics enclosure IP67 water resistant to 3 ft., Floats. Battery: two AAA alkaline batteries (included). Battery life: 400 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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	Qty	Item #	Description	Specs	Ships	Price
		89545	Kestrel 4500 Pocket Weather Tracker		24 hours	$329.00 3+ $299.00

Kestrel® 4500 Pocket Weather Tracker with Bluetooth® Wirelessly transfer real-time and logged data to your laptop or PDA! The data transmission range adjustment allows you to maximize power to communicate with your Kestrel up to 30´ away or reduce power for closer, more secure operation. Permanently coded 4-digit PIN numbers provide added security when pairing and transmitting data.

	Qty	Item #	Description	Specs	Ships	Price
		89133	Kestrel 4500 Pocket Weather Tracker with Bluetooth		24 hours	$389.00

Kestrel^® 4500 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 and Replacement Parts

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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