RISEPRO Anemometer, Digital Mini LCD Wind Speed Gauge Air Flow Speed Meter & Temperature Thermometer HT-81 OUTDOOR SPORTS  RISEPRO&reg; Thermo Anemometer is an ideal tool for outdoor sports such as Surfing, Windsurfing, Sailing and Kite Flying and etc. HOME & INDUSTRIAL  A useful tool for home and industrial usage: 1. Checking the air-conditioners fan speed and temperature. 2. Checking the fans speed and environment temperature. 3. Checking the air or wind speed with temperature for variety of tasks MULTIPLE WIND SPEED UNITS  Wind Speed measure range: 1.00 ~ 25.00 m/s (3.6  90.0km/h). It can display 5 parameters: m/s, km/h, ft/min, knots & mph. No more self-conversion! TEMPERATURE RANGE  Measure range 0 ~ 50 C (32 ~ 122 F) and switchable between C or F MEMORY RECALL  Record and recall MAX / MIN readings