ZJ-TY 1821 is a passive UAV/Drone detector designed to provide outstanding performance for detecting and tracking drones in the sky. Our factory has developed this product with advanced technology and high-quality materials to ensure accurate and reliable results. This detector offers real-time information on drone activity and has a long-range detection capability. It is easy to use and install, making it an ideal solution for protecting critical infrastructure, events, and public safety. With the ZJ-TY 1821 Passive UAV/Drone Detector, our factory provides an efficient and cost-effective solution to the growing threat of unauthorized drone activities.