Dual digits LCD with function annunciation. Data Hold, Auto Power Off, Data record function for Max and Min. Temperature and Air Velocity reading. Measurement : m/s, km/s, ft/min, knots, mile/h, oC, oF. Measurement Range And Accuracy : Air Flow (Vane) - 0.4 ~ 25m/s (+2% of reading +3 digits).

Hot Wire : 0.2 ~ 20 m/s (+5% of reading +3 digits)

Temperature : -20oC~ 80oC (+1% of reading +0.5oC +3digit), -5oC ~ 175oF (+1% of reading +1.0oF +3 digit).