GSC International 4-1000 Anemometer This anemometer is designed for classroom investigations of wind speed and air movement. As air flows across the rotating cups, students can observe and measure rotational motion to estimate velocity. Suitable for earth science and physics instruction, the device supports outdoor data collection activities and introduces concepts related to weather systems and kinetic energy in moving air. Simple cup-style design for visible rotation One red cup allows easy rotation counting Constructed from corrosion-resistant materials Suitable for outdoor weather observations Instruction guide included for classroom use PRODUCT WARNINGS This product is NOT A TOY. It is designed for educational, scientific, or professional use only. Adult supervision is required at all times. Improper use may cause injury or damage. Always follow safety guidelines and wear appropriate protective equipment. Not suitable for children 15 and under.