Features: 1. Measurement of wind speed and temperature 2. Wind cold indicator 3. Switch wind speed units 4. Real-time measurement of wind speed and average wind speed 5. Measurement of maximum wind speed and minimum wind speed 6. Switch between Fahrenheit and Celsius unit 7. Timed automatic shutdown (automatic shutdown after 10mins of no button operation) 8. LED lighting 9. Measurement of air volume Specification: A. Wind velocity measurement m/s: Measurement range: 0~30; Resolution: 0.01; Threshold: 0.3, Accuracy: 5%0.1 ft/min: Measurement range: 0~5860; Resolution: 1.968; Threshold: 60, Accuracy: 5%20 knots: Measurement range: 0~55; Resolution: 0.019; Threshold: 0.6, Accuracy: 5%0.2 km/h: Measurement range: 0~90; Resolution: 0.036; Threshold: 1, Accuracy: 5%0.4 mph: Measurement range: 0~65; Resolution: 0.022; Threshold: 0.7, Accuracy: 5%0.2 B. Wind flow range: CMM: 0-999900m/min CFM: 0-999900 ft/min CEM(FT/MIN): Range: 0-999900; Resolution: 0.001-100; Area: 0.001-9999 CMM(M/MIN): Range: 0-999900; Resolution: 0.001-100; Area: 0.001-9999 C. Wind temperature measurement: Measurement range: -10~+45/ 14~113 ; Resolution: 0.1/ 0.2; Accuracy: 2/ 3.6 Battery: 9V battery(6F22)(not included) Temperature sensor: Negative Temperature Coefficient Resistance Operation temperature: -10~+45(14~113) Operation humidity: Less than 90%RH Storage temperature: -10~+50(14~122) Current consumption: About 6mA Weight: 184g Size: 165x85x39mm Package includes: 1 x MT62 Digital Anemometer 1 x English User Manaul