Where, when and how much to water. Gilmour�s electronic single outlet timer has a daily clock option of 12 or 24 hours, can skip cycles for 2nd or 3rd days, and has manual or timed on-off settings. The angled display makes for easier reading and the battery voltage meter monitors available power. Has 1 on-off watering cycle 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 2 AA batteries (not included).