Overview: Measurement items: Air velocity, Air temperature Specification: Measurement range: Air velocity: 0~30m/s, 0~90km/h, 0~5860ft/min, 0~55knots, 0~65mph (± 5%) Air temperature: -10~45º C, 14~113º F (± 2º C) Resolution: 0.2º C, 0.2m/s Display: LCDSensor: Air velocity sensor: Plastic impeller, magnetic induction Temperature sensor: NTC thermometer Currentconsumption: about