Where, when and how much to water. Gilmour's electronic double outlet timer has a daily clock option of 12 or 24 hours, can skip cycles for 2nd or 3rd days, and has 2 outlets, 1 programmable and 1 non-programmable. The angled display makes for easier reading and the battery voltage meter monitors available power. You can have up to 8 watering cycles per day with a two minute minimum watering time. The time counts down on screen during watering and the screen is backlit for better visibility. The electronics separate from the water valve for ease of programming or removal for security, just squeeze the side grips and pull to remove. Requires 4 AA batteries (not included).