What is the hotel universal worker for?

I can't say that the development in this area is not good. I can only say that if you want to develop weak electricity, you have to pay several times more efforts than other industries. If you work in weak current, you can be a project manager. The salary is similar. The annual salary should be around10-150,000. But if you work in a hotel, what about the weak current supervisor? Only about 3000, weak current engineer? About 4000. The threshold of the hotel is low, the relative salary is low, and there is no opportunity to study. If you can't do it, don't do it. If you have to do it, go to a weak current engineering company to learn it. The hotel engineering department has no way out.