* Humidity : 10 to 95 %RH, oC/oF * Anemometer : 0.4 to 30.0 m/s. * Anemometer unit : m/s, km/h, MPH, knots, ft/min, oC/oF. * Light : 0 to 20,000 Lux, 0 to 1,680 Ft-cd, auto range. * Type K Thermometer : -100 to 1300 oC, oC/oF. * Data hold, Record (Max., Min.) * Tiny bone shape with light weight and small size.