Dwyer WIND METER-KPH - Portable Wind Meter, KPH Scale
The Portable Series Wind Meter is used to indicate wind speed and is ideal for yachtsmen, outdoorsmen, and farmers. Direct reading, no calculations. Hold meter at eye level, back of the unit to wind. White ball in tube indicates wind speed. Meter has two scales for maximum accuracy and easy reading - low, 2-10 and high, 4-66 mph range. For high range, cover the hole with a finger. Pocket size, sturdy plastic, has a case.