Smart Watering Made Simple. Connect your Rain Bird controller to your mobile device to turn on sprinklers, set up customized watering schedules, and automate weather adjustments, saving you water and money. Compatible with the following Rain Bird controller models: ESP-ME3 ESP-TM2 ESP-RZXe ST8-WIFI RC2 ARC8 ESP-Me WiFi For more information: http://wifi.rainbird.com 1-800-RAINBIRD