Davis Sonic Anemometer [6415] Trolling Motor Lithium Battery Kit This method requires stealth and

This method requires stealth and precision

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Davis Sonic Anemometer [6415] Trolling Motor Lithium Battery Kit This method requires stealth andSonic Anemometer Measure wind with no moving parts. Use with a Sensor Transmitter or an EnviroMonitor Node, or as a replacement anemometer for wireless and cabled Vantage Pro2. The Davis Sonic Anemometer has no moving parts it measures wind speed and direction with electro acoustic transducers that send sonic pulses back and forth. The time it takes for the pulses to travel from one transducer to the other is affected by the movement of air. Speed and