Reliable air speed measurement at a reasonable price
Perfect for use in HVAC, environmental studies, hazardous spill clean ups, electrostatic precipitators, and all types of air flow measurements. Based on the principle that a freely turning turbine will rotate at a speed directly proportional to the wind speed. One piece construction with built-in probe. Select readout in any of 5 scales: meters/second (0.4 to 30), feet per minute (80 to 5900), miles per hour (0.9 to 68), knots (0.8 to 58), or kilometers per hour (1.4 to 108). Simultaneously displays temperature in °C or °F. Advanced features include hold, min/max, a USB computer interface, auto power off, low battery indicator and a large LCD with dual display and audible beeps when buttons are pressed. Comes ready to use in a hard carrying case with one 9V battery.