This course is a beginner's or entry level class on a lawn sprinkler's electrical system. We cover the fundamental concepts of volts, amps, & ohms and how to measure these at the timer. You'll receive a 4 step process to program any irrigation timer, whether AC or DC. Then we'll get specific about timers, covering all the features you need to program, troubleshoot, or maximize a system's efficiency. As always, I've given you several real world skills that you can put into practice today; selecting and programming the right timer, properly splice sprinkler wiring, use a multimeter to troubleshoot an irrigation timer, and how to use a wire doubler.