3 cups mounted on rotor allow the reading of wind speed in all directions

Cups integrated to the case for better shock resistance.
Waterproof and insubmersible.
Automatic backlighting in low light conditions.
Automatic OFF switch 60 seconds after cups have stopped rotating (allows battery saving).
Compact and ergonomic design.
Features : Wind speed : Scale : 1 to 40 m/s.
Units : digital knots, m/s, km/h, mph.
Graphic Beaufort force.
Average speed on 5,10, 20 or 40 selected seconds .
Accuracy : ± 4%. / Resolution : 0.1 (up to 9.9), 1 (over 10).
Air temperature and Windchill: Scale : -20 to +60°C. / Units : °C or °F. / Accuracy : ± 1°C (± 2°F). / Resolution : 1°C (2°F).
Dimensions : height 135 mm, Ø 7 cm (cups included).
Weight : 65 g with battery.
Power :1 x 3 V lithium battery. CR2032 type.
Battery lifetime : 8000 hours (up to 10 years).
Covers the entire product lifetime in normal conditions of use.
70 hours with backlighting.
Options : Replacement kit (49358) / Holder (49359).