1Measurement of wind velocity,temperature and flow 2Unit conversion of wind velocity,temperature and flow 3Measurement of maximum and minimum wind velocity 4Measurement of 2/3 V max and average wind flow 5Data holding,storing and deleting function Feature:Measurement of wind velocity,temperature and flowUnit conversion of wind velocity,temperature and flowMeasurement of maximum and minimum wind velocityMeasurement of 2/3 V max and average wind flowData holding,storing and deleting functionLow battery indicating functionAuto power off function (Power off automatically if no any operation for 10 Minutes)Memory of 500 recordsBacklight functionConnecting to PC by USB cableAudio key pressing alertLarge LCD displayWind handle can elongateSpecification:Wind Speed Range 0.3~45m/s Wind Volume Range 0~999900m3/min Wind Speed Accuracy 2.5%0.1dgt Wind Speed Units m/s, Ft/min, Knots, km/hr, Mph Wind Volume UnitsCMM / CFM Wind Speed Resolution