Product Information:If you want entry level control, but you need a power sub panel on the pool pad ECommand 4 is for you. It offers the same level of automation as OnCommand but with a built in sub panel. The ECommand 4 is the easy and costeffective way to automate essential pool and spa functions. Control filter pump, heater, lighting and more. Automate schedules to turn lights on at night or to manage energysaving two or variablespeed pumps for better efficiency. Functions can be set to run automatically or can be controlled from an optional wireless spaside, floating remote. The base system supports 4 high voltage relays, 3 valves, 1 heater and solar. Whatever the function, pool owners can maintain basic control of their pool and spa with ECommand 4.Applications:#149; Entrylevel automation with an electrical sub panelIncluded:#149; (1) ECOMMAND 4 Electronics Unit#149; (3) Temperature sensors with 15 ft. (5m) cable, hose clampWhats NOT Included: Some of the additional items that you may need to complete an installation include:#149; Circuit breakers: None are included with control#149; Wire: 4conductor cable (electronics unit to external chlorination)#149; Wire/conduit for 100A service from main panel to ECOMMAND 4#149; Wire/conduit for filter pump and other high voltage loads#149; Wire for bonding#149; Mounting hardware (screws, etc.) for mounting ECOMMAND 4#149; Valves (use standard Hayward, Pentair/Compool, or Jandy valves)#149; Additional valve actuators Features:#149; Costeffective pool and spa control and automation#149; Control and automate up to four pool and spa functions#149; One unit supports pool and spa combination or pool only or spa only#149; Energysaving two or variablespeed pump control. California Title 20 compliant.