Environmental Meter, Environmental Sensor Type Air Flow Sensor, Ambient Temperature Sensor, Compass, Pressure Sensor, Relative Humidity Sensor, Air Velocity Range 0.4 to 89 mph, 0.6 to 60 mps, 1.2 to 116.6 knots, 118 to 7874 fpm, 2.2 to 216 kph, Series...