Features1. LCD display with backlight, easy for reading. 2. Measure wind speed & temperature. 3. Wind speed range: 0-30m/s; temperature range: -10-45 degree C/14-113 degree F. 4. Current/MAX./average wind speed reading to choose. 5. 5 wind speed units for selection: m/s, km/h, ft/min, knots, mph. 6. Beaufort scale display; wind chill indication and low battery indication. 7. Auto/manual power off. 8. Great Tool for windsurfing, sailing, fishing, kite flying and mountaineering.Specification1. Display: LCD 2. Measurement Units: M/s, km/h, ft/min, knots, mph 3. Temperature Unit: Degree C / degree F 4. Temperature Range: -10-45 degree C / 14-113 degreeF 5. Speed Range: 0-5860ft/min; 0-30m/s; 0-90km/h; 0-65mph; 0-55knots 6. Accuracy: (+/-)5% 7. Resolution: 19ft/min; 0.1m/s; 0.3km/h; 0.2mph; 0.1knotsSpecification: Package Weight One Package Weight 0.16kgs / 0.34lb One Package Size 15cm * 15cm * 5cm / 5.91inch * 5.91inch * 1.97inch Qty per Carton 80 Carton Weight 10.00kgs / 22.05lb Carton Size 40cm * 26cm * 32cm / 15.75inch * 10.24inch * 12.6inch Loading Container 20GP: 801 cartons * 80 pcs = 64080 pcs 40HQ: 1860 cartons * 80 pcs = 148800 pcs