Multifunctional Portable Anemometer: Ideal for commercial and home use. Such as drones, HVAC, sailing, shooting, kite flying and fan wind speed testing, knowing the weather forecast in advance to plan trips. Perfect for pilots, engineers, captains, sailors and other people interested in weather Lightweight and practical portable anemometer for outdoor activities: Comes with a yellow soft rubber protective case, the protective case can well protect the instrument from bumps or drops. Pocket or hang around your neck to free your hands when not in use Air velocity and temperature measurement Average/current air velocity measurement Note: The data are all measured manually, please allow 1-3cm error Due to differences in light and display, there may be some color differences, please refer to the actual item received.