The Haverland RC Wave display has an easy-to-read, backlit screen that dims to a blank screen after 120 seconds of no interaction. It displays the set temperature and the mode you’re using.
All menus (except time setup after first power up) time out after 60 seconds. If you are in the process of setting a program when the menu times out, your settings will be remembered. Only the interval you were in the middle of editing would lose its changes. There does not seem to be a timeout on the initial switch-on time setting menu.