The Kestrel 4000 NV measures every environmental condition simply with the press of a button! This unit has a night-vision preserving backlight which helps users to sustain natural night vision. The NV's backlight incorporates an optical filter to reduce overall brightness and minimize blue and green spectrum light to preserve night vision. Additionally, NV backlights are also much dimmer than a standard backlight, making it more difficult to detect with the naked eye in night operations. This backlight appears soft greyish pink, not red, and is still in the visible spectrum, so is not compatible with night-vision equipment. The US Military relies on the Kestrel NV Weather Meters to remain as tough as their operations.

Full range of wind and weather monitoring functions with data storage, graphing functions, and PC connectivity

Particularly handy for military applications with its night-vision preserving backlight

Accurately measures wind speed, wind chill, altitude, humidity, and pressure trend

Manually store measurements with the press of a button; automatically store measurements, even when the unit is turned off

Powered by 2 AAA batteries (included); 5-year warranty