Features： 1、[High Accuracy] This digital anemometer has accurate measurement results and selectable wind speed units to meet your various need. 2、[Lightweight And Portable] The handheld wind speed meter has a large replaceable impeller, which is light and easy to carry, and has a wide range of uses. 3、[Durable Material] Digital anemometer is made of ABS material, which is durable, wear resistant, safe, and can be used for a long time. 4、[Stable Performance] The handheld wind meter is exquisite in workmanship and stable in performance, so you can use it with confidence. 5、[Widely Application] Widely used in construction, industrial hygiene, sailing, boating, windsurfing, kite, gliding, aviation, etc. Specification： Item Type: Anemometer Material: ABS Product Size: Approx. 115 x 42 x 19 mm / 4.5 x 1.7 x 0.7 in Battery: 3V CR2032 button battery (Battery Not Included) Wind Speed Unit Selection: m/s, ft/min, knots, km/h, mph. Wind Speed Measurement Range: 0.3 to 30 m/s Accuracy: ±5% Temperature Measurement Range: -10 to 50℃ Accuracy: ±1℃ Humidity Measurement Range: 0%-99% Accuracy: ±5% Resolution: 0.1m/s, 1%, 0.1℃ Application: Suitable for electric power, steel, petrochemical, energy saving, fishery, various fan manufacturing industries Weight: Approx. 95g / 3.4oz Color: Blue Package List： 1 x Anemometer (Battery Not Included) 1 x Portable Bag 1 x Rope 1 x Manual