The wind direction indicator tail fins are designed to improve the functionality of your wind measurement devices. Made from plastic materials, these accessories ensure the sensors remain stable and provide accurate readings. Suitable for various applications, including meteorological research, agricultural monitoring, and personal weather stations, they are easy to install and highly effective. Features -Color:Black -Material:Plastic -Size:20.50X10.00X2.50cm/8.06X3.93X0.98in -Precision measurement: ensures high speed and direction data, vital for accurate environmental monitoring -Dependable accessory: a reliable tail fin accessory that enhances the performance and longevity of your wind sensor -Consistent stability: provides excellent stability, ensuring your wind sensor delivers accurate readings in all conditions -Outdoor durability: designed to withstand outdoor environments, making it ideal for use in any weather -Simple installation: easy to install, allowing for quick and efficient setup of your wind monitoring equipment Package list: 1 x Anemometer tail