With 4- to 22-station scalability, the ESP-MEI helps you better serve your customers. Install the same controller on residential and light commercial sites – the more stations you add, the more you save, providing you and your customers with more value for the money with added Wifi capability for easy efficient setup. The Wifi operates like a wireless remote control for your irrigation system while onsite or an internet-based monitoring and control system when offsite Built-in mobile notifications provide troubleshooting access, simplify service calls, and warn of freezing conditions when expected