testo 440 16mm Multi-Function Flow Rate Instrument Vane Kit - Medium Flow

0.85 m 1.5v 50 m Air Velocity bluetooth Celsius Degrees Degrees Celsius Degrees Celsius General Degrees Celsius temperature Flow Rate Flow Rate Instrument IAQ measuring Instrument Vane Kit measuring Measuring Instrument Medium Flow Medium Flow Kit Rate Instrument Vane Vane vane probe velocity and IAQ