The Rain Bird you know and love, but smarter. The LNKWIFI connects to the new ESP-TM2 controller, and the new faceplate for the ESP4ME controller. Simply plug the LNKWIFI in and begin to customize every zone, reap the benefits of automatic seasonal adjustments, share access with other family members or contractors, delay your watering, receive notifications for events, and effectively communicate with your yard from anywhere. The New Rain Bird LNK WiFi Module allows easy access and control of a Rain Bird irrigation system from anywhere in the world. With the LNK WiFi Module and Rain Birds FREE mobile app, users get access to off-site management, real-time alerts and advanced water management tools via their smart phone or tablet.