Wind Meter
Also: Kestrel · Anemometer
A handheld weather meter that reads wind speed, temperature, and pressure at the firing line to feed a ballistic solver and refine a firing solution.
A wind meter is a small handheld device that measures the local weather at the firing position, typically combining an anemometer for wind speed with sensors for temperature, humidity, and pressure. Brand names such as Kestrel have become shorthand for the category among precision shooters, and many units run a full ballistic solver onboard. The wind speed it reports is the value at the shooter’s location, which is only one of several readings needed when judging the air all the way to the target.
Beyond raw wind speed, the meter supplies the temperature and barometric-pressure figures that drive air density, often expressed as a density-altitude number. Shooters use those readings to refine their dope so the elevation and windage corrections match current conditions rather than yesterday’s. The device supports wind-reading but does not replace it, because the wind downrange can differ sharply from the wind at the muzzle.