Sensor plugin with CESIUM 1.9

How to install and use sensor plugin in cesium 1.9?

The Readme file for sensors explains how to install

Please refer to this thread regarding support

Be aware that the official cesium-sensors plugin will not work with Cesium 1.9 (at least, not with rectangular sensors). If you look at the github page, there are some user forks that have fixed the issue that would allow it to work in 1.9+.