It's designed to fit virtually any residential or light commercial need. It's designed for flexibility right at the job site. It's designed to keep an installer's inventory to a minimum. What is it? It's the modular design of the new ESP Modular controller.

Beginning with a 4-station base unit, the ESP can be expanded with up to three more 3-station modules. Thus, a contractor no longer needs to stock eight different types of controllers (4-, 7-, 10- and 13-station units in both indoor and outdoor models)…he simply needs to keep on hand just three items (indoor and outdoor ESP Modular base units and 3-station modules).

New Only for the ESP-Me: Mix and match new SM6 six station expansion modules along with SM3 three station modules to cover anything from 4 to 22 stations!