The easily programmable Gilmour® Electronic Water Timer saves you time, money and water all season long. Choose the start time, frequency and duration, from one to 360 minutes, that you want to water your lawn, and let the timer do the rest. Its large LCD screen makes programming a breeze, and a safeguard automatically turns the water off when the battery is low. The rain-delay feature even lets you choose how long to delay watering after rainfall, and an on/off function allows you to water manually without removing the timer. Runs on 2 AA batteries (not included).