ANEMOMETER 0.5-20M/S 0.1%RH TO 99.9%RH; Air Velocity Range:0.5m/s to 20m/s; Beaufort Force:-; Operating Temperature Min:0 C; Operating Temperature Max:50 C; Relative Humidity Range:0.1% to 99.9%; External Height:169mm ;RoHS Compliant: NA