Do you want to put in an irrigation system but have no power or no wiring well that isn't a problem anymore! The new Orbit battery powered sprinkler timer and valve combo provides up to a year of automatic operation on one set of standard batteries. Installation is simple and the timer utilizes Orbit Easy-Set programming logic.Features and Benefitsincludes on 1" inline valve and easy set battery timerIdeal for remote locations and drip irrigationFully waterproof constructionControls up to 4 irrigation valvesHas a rain delay function and is rain sensor compatibleNo external power source needed, runs on 3 standard AA batteries