Evaluate the revision by updating the page in the system

I found some old problem where it was discussed what can be done so that the orders page is updated itself in a given period of time There they indicated such a line "<meta http-equiv="refresh" content="30"/>" Tell me if it still works, if so, how should I use it? If not, how can it be improved and how many hours is it? The task is that the employee simply needs to see a list of products in the order (they are added there themselves from other processes) and in order not to constantly update the page, you need to add it to update the page every 30 seconds / minute