The CT150 is a highly recommended injector cleaning and testing device. It can use ultrasonic waves to clean the injector nozzles completely, and it can simulate different pressure of injecting oil to test the injector nozzles. Four injectors can be tested at the same time. The cleaning fluid can be used for the injector nozzles, and the test fluid should preferably be alcohol so as not to damage the machine or the injector nozzles.
These are videos posted by a YouTuber Dick Hamm, Autool CT-150 Unboxing and cleaning injectors/Review and Injector cleaning and maintenance using the Autool Ct-150. So you can take a closer look and it will definitely help you.
If you have questions, feel free to leave a comment!