Battery Operated, Analog Electronic Water Timer, For 3/4" Faucet /Hose Spigot Hook Up, Inlet 3/4" Female Hose Thread, Swivel Outlet 3/4" Male Hose Thread, Temporarily Override Normal Programming With Timed Rain Delay, Pause Automatic Watering For Up To 72 Hours, Or Timed Manual Watering, Easy Program, Water Tight UV Resistant, Attaches To Any Outdoor Faucet, 24 Start Times Per Day, Minimum 15 PSI Required, Requires 2 "AA" Alkaline Batteries, Not Included.