Most conventional timer-based systems water on a fixed weekly schedule and do not adjust to changing environmental conditions. This can result in over-watering of 30% - 50%. What’s more, over-watering injures plants and creates runoff that can damage paths and driveways. Weathermatic’s SmartLine System, is the world’s leading weather-based controller. With a feature set that exceeds most high-end controllers, the unit brings affordable ET based water management to any site - saving precious water resources and maintaining landscapes in peak condition.