Gm818 LCD Digital Anemometer Handheld Wind Speed Gauge Meter Air Speed Tester Handheld Wind Speed Measuring Instrument

Specification: Model: GM818 Air Speed Specification: Range: 0-30 m/s, 0-90 /h, 0-5860 ft/min, 0-65 mph, 0-55 Knots Resolution: 0.1 m/s, 0.3 /h, 19 ft/min, 0.2 mph, 0.2 Knots Threshold: 0.1m/s, 0.3 /h, 39 ft/min, 0.2 mph, 0.1 Knots Accuracy: ±5%. Air Temperature Specification: Thermometer: NTC Thermometer. Range: -10?~45°C (14?~13?) Resolution: 0.2?, 0.36? Accuracy: ±2?, ±3.6? Current Consumption: About 3mA Storage Temperature: -40?~60?, -40?~140°F Operating Humidity: ?90% RH Battery: CR2032 3.0V battery (NOT included) Item Size: 50*22*112.1mm / 1.97*0.87*4.41in Weight: Approx. 97g / 3.4oz   Package list: 1 * Anemometer   Note: Due to the difference between monitors and light effects, the pictures may not reflect the actual color of the item.