Gear

Wind Powered

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Estesian Technologies’s new wireless anemometer achieves self-sufficiency via an internal brushless generator that requires only a small amount of wind for power. The device is compatible with standard potentiometer-based wind-direction sensors, allowing it to provide wind-direction measurements. It is accurate to +/-0.17 knot, has a range of 300 feet, and has both pulse and analog outputs; a serial port allows it to be used with its own display, a variety of analog and digital displays, or a PC. Estesian Technologies, 413-548-9854, www.estesiantech.com

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