30mm 6 plastics blade
Light air response 0.4m/s
Air flow calculate function
Max/Min/Avg and data hold
Memory recall function
Memory capacity: 99 records
Backlight function

Air Flow (volume) Calculation: Range 0~9999 CMM, Range 0~9999 CFM, Resolution 1
Temperature Measurement: -20~60oC +/-1oC, Resolution 0.1, -4~140oF +/-1.8oF, Resolution 0.1
Air velocity Measurement: 0.4 to 45 m/s, 1.5 to 90 km/hr, 0.8 to 48 knots, 79 to 4921 ft/min, 1~10Beaufort, Accuracy +/-2%