Digital timer with plug-in base for wall mounting, front frame 72x72mm, text-oriented user guidance and backlit display, interface for OBELISK top2 memory card, power reserve and programmed summer/winter time changeover. Daily and weekly program, holiday, pulse and cycle program, 2 random programs, expiration timer, permanent switching ON / OFF / AUTO, switching preselection, 84 memory locations, PIN coding, 1 channel