Wind Speed Indicator Combines Accuracy with Lightweight Portability
Use for weather observation, environmental and airflow experiments. This pocket-sized Turbo Meter Electronic Wind Speed Indicator has a free turning turbine suspended on jewel-sapphire bearings that responds to the lightest winds, down to 1 mph, with a resolution of 0.1 mph. Rotation is sensed by an infrared light beam that adds accuracy with no loss to friction. A bright, three-digit display provides excellent viewing contrast in bright sunlight or at night. Reads wind speed in mph, knots, ft. / min. and m / s. Includes wrist lanyard, protective case and instruction manual. Dimensions 1.16"H x 2.6"W x 4.65"L. Runs on three AAA Batteries (No. 111869), sold separately.