Aerial Armor
https://www.aerialarmor.com/blog/range-of-the-dji-aeroscope
https://www.aerialarmor.com/drone-detection-equipment/drone-detection-radar-systems
https://www.aerialarmor.com/drone-detection-equipment/drone-detection-camera
Corona Wire - DroneWatcher App
https://www.thecoronawire.com/is-there-an-app-that-detects-drones-2021/