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 high quality 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 workman 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. 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 1 x Anemometer (Battery Not Included) 1 x Portable Bag 1 xRope 1 x Manual