... Sound Level Meter, Luminometer, Relative Humidity Meter,Air Flow Meter, Temperature Meter and Anemometer.♦ Built-in low friction vane ... air velocity in CMM, CFM, m/s, km/h, FPM, knots♦ Built-in precision digital humidity and temperature sensor ... 280 * 89 * 50 mm(including Sensor probe)♦ Product Net Weight: 430g ♦ Standard Accessories: Windbreak , Battery, Sensor Probe Holder , user manual, gift box♦ ...