Description: 8 in 1: It can be used to measure wind speed, temperature, humidity, atmospheric pressure, altitude, point temperature, heat index, wind chill index, etc., all in one machine. High Quality Material: Made of high quality plastic material, durable. Clear Reading: LCD display with backlight, large screen display, easy to read. Portable: Small size, light weight, compact structure, easy to carry and store. Wide Applications: Suitable for when flying a plane, helicopter or drone, but also for hiking, climbing, sailing, golfing, fishing or other outdoor activities. Power Supply: Built-in 3.6V LIR2032 lithium battery, ready to use after USB charging. Specification: Material:Plastic Size Chart: 119x50x25mm/4.69x1.97x0.98inch Package Includes: 2x Anemometer 2x USB Charging Cable 2x Black Storage Bag 2x Manual (English) 2x Color Box Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3. Wish you a wonderful on-line shopping!