The hotel is isolated. How do they check to see if they have gone out?

Through hotels, personal travel itinerary, etc.

First of all, the hotel front desk will register your accommodation information, and the local CDC and epidemic prevention department will generally set up a temporary office in the hotel lobby to record your temperature during the isolation period. Secondly, personal travel itinerary will record your itinerary and where you have been. Furthermore, the Skynet system (which uses a large number of cameras set in the streets to form a monitoring network) can also find out your whereabouts.

It is suggested to wait patiently for the end of isolation, strictly implement isolation requirements, and receive relevant policies and notices in time. Through isolation, we can minimize the scope of pollution, reduce the chance of the spread of infectious diseases, and also for your health and mine. If you have suspected symptoms and violate the isolation policy, you may be punished by law.