The Easy Dial indoor sprinkler timer/controller is the simplest way we know to control 24 VAC sprinkler systems with up to 6 zones/stations. This timer is engineered for installation in an indoor location, meaning a covered place that is not exposed to water. You can use it in an outdoor location if you place it inside an Orbit outdoor cabinet. It can power a pump start relay and one valve solenoid at the same time.