ANEMOMETER Measurement Items: Air Velocity, Air Temperature 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: Lcd Sensor: Air Velocity Sensor: Plastic Impeller, Magnetic Induction Temperature Sensor: Ntc Thermometer Low Battery Indication: Yes Auto Power Shut Off: 14 Minutes Without Any Operation Backlight: 12 Seconds Active By Press Any Key Max/Min/Avg Reading Packing: Blister+Card Power: Cr2032 3.0v Dimension: 104.3x57.8x19.9mm Net Weight: 58.9g (Including Battery)