... ,Combined Sound Level Meter, Luminometer, Relative Humidity Meter,Air Flow Meter, Temperature Meter and Anemometer.♦ Built-in low ... knots♦ Built-in precision digital humidity and temperature sensor for fast response♦ Utilizes precision photo diode and correction ... Black ♦ Product size : 280 * 89 * 50 mm(including Sensor probe)♦ Product Net Weight: 430g ♦ Standard Accessories: Windbreak , Battery ...