From Gwytech Systems:
ET Basic is an irrigation software application allows the user to water their yard by using weather data to adjust the amount of water that needs to be used each day. This weather data is provided to the ET Basic software by the use of a weather application developed specificity for this software. There are many weather applications that will work with this ET Basic application to retrieve weather data. Most of these weather data sources are free of any costs. In many cases the cost savings with our weather applications free data verses using a paid weather data service will pay for the irrigation timer. Users have the option of using an on site tipping bucket rain gauge with this application allowing for accurate on site rainfall. This system is targeted to small property owners that require one timer that can control up to eight stations.