The Alex-Tronix Smart Clock is the only battery or solar powered temperature budgeting controller that can operate up to six stations plus master valve. It has four independent programs with 4 start times per day per program, and the operation options are automatic, semi-automatic, and timed manual. It has the ability to water on scheduled days of the week or interval of days, and rain delay function up to 99 days. Self powered controller with powder coated outdoor metal case with lock to minimize vandalism. The Smart Clock uses energy saving technology recognized by the U.S. Department of Energy.