Easily turn any sprinkler hooked up to a hose into an automatic system with the Orbit One-Dial Garden Hose Digital Water Timer. Just hook the weatherproof timer up to your hose and set the one-dial controller. An LCD screen shows the settings: you can set it to run up to 4 hours (in 1 minute increments) and as often as every 6 hours, 12 hours, or every 1-7 days as well as setting the time it should go on/off. A simple button press delays watering if you’re expecting rain (you can set the delay for 1-3 days). Basically it turns any manual watering system into an automatic one!
(multiple sprinklers? it’s also available in a 3 valve version)