Rain Bird Smart WIFI 10 Station Irrigation Sprinkler System Controller TimerCategory: Sprinkler Timer BatteryDon't be the poor sod on the block with poor sod on their lawn. Worry less about the health of your lawn and irrigate smarter with the flexibility and adaptability of the Rain Bird Smart WiFi Compatible Irrigation Sprinkler Controller.This Rain Bird sprinkler system is simple to set up and program thanks to its easy-to-use menus and backlit display. Input a few specifics, then let the ESP10MEI design do the rest. This irrigation controller features 1-touch manual watering, delay watering up to 14-days, and seasonal adjustment from 5% to 200% for water savings. It's also equipped with non-volatile memory, which saves controller settings even after long power outages. Finally, this timer controller box is compatible with the plug-in Rain Bird LNK WiFi module (not inlcuded), which allows you to customize and control your irrigation system right from your mobile device or smartphone.This system starts with 10 base stations, but allows you to expand up to 22 stations with 3 or 6 station modules (not included).