JDC Skywatch Eole Windmeter (Anemometer)

JDC Instruments SKYWATCH^(R) "Eole" Wind Speed Meter (Anemometer)

Precision-made in Switzerland by JDC Instruments, the JDC SKYWATCH Eole Wind Speed Meter is a great companion for sailors, windsurfers, glider pilots, and many other sportsmen and sportswomen who enjoy outdoor activities and want or need to know the wind speed.

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Larger than the more basic Skywatch Fun model but still pocket-sized, the JDC SKYWATCH Eole gives you a choice of 3 wind speed measurement modes: current wind speed, average wind speed for the last 30 seconds, and maximum wind speed. The Eole uses a cup type impeller, which is considered to be more accurate than propeller type anemometers in shifting winds.

Current wind speed is calculated every second, and an average is calculated every 4 seconds. Both average and maximum wind speed are reset every time the meter is turned on. You can select km/h, mph, knots, m/s, or fps as the digital (numeric) wind speed readout on the large LCD panel. In addition to the digital readout, the LCD panel also displays a Beaufort scale bar graph whose reading corresponds to the digital readout.

The SKYWATCH Eole Wind Speed Meter is not only compact and lightweight but also tough and weatherproof (but not submersible). A protective polyethylene foam surface ensures comfortable, easy handling. On the bottom of the instrument is a threaded fitting for use on a tripod or monopod. A special feature of this anemometer is its omnidirectional (JDC Instruments calls them "3D") impeller cups that eliminate the need to point the meter directly into the wind. A sturdy removable cap protects the impeller when the meter is not being used.

Please note that this anemometer is sensitive to magnetic fields. It works by picking up magnetic impulses transmitted by the spinning impeller blades, processing them into logic pulses, and supplying them in binary form to the LCD panel. This means that the instrument may display numeric values when in a magnetic field (from a computer, electric appliance, etc.). However, this will not affect operation under normal circumstances.

Specifications
	Metric	English
Accuracy:	+/- 5% facing the wind, with a rotation of not more than +/- 45° from directly into the wind and with a sideways rocking motion of not more than +15° or -45° from horizontal (user manual explains this via an illustration)
Operating temperature range:	-10° to +50°C	+14° to +122°F
Measuring readout:	Reads in tenths up to 99.9 and in units thereafter
Measuring units:	km/h or m/s	mph, knots, or fps
Wind speed measurement range:	0 to 200 km/h 0 to 60 m/s	0 to 125 mph 0 to 115 knots 0 to 197 fps
Power:	Replaceable CR2032 lithium battery (preinstalled) with an expected lifetime of 2 years under intensive use
Dimensions:	62 x 120 x 32 mm	2.45 x 4.73 x 1.26 inches
Weight:	130 grams	4.59 ounces