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When used as a snow gauge
The updated version is available for purchase here
rainfall measurement has relied on mechanical tipping bucket gauges
Wind speed & direction
faster balloon capping
Texas Electronics TV-114 Wind Speed Sensor, Heavy Duty, AC Output Barometers When used as a snowThe Texas Electronics, Inc. TV 114 Wind Speed Sensor Heavy Duty is a mechanical style anemometer that measures the horizontal velocity of wind. The cup anemometer is intended for long term, maintenance free operation. As the cup mechanism rotates the AC generator produces an AC sine wave where the amplitude and frequency are proportional to wind speed. This sensor is self generating and requires no external power. Specifications: Weight 6. 0 lbs
US$ 1000.00
US$ 63.75