Hunter PCM-900 Module 
For use with Pro-C Controllers

9 Zone Add-On Module.

Easily expand your Pro-C 3 zone base model controller up to fifteen (15) zones.

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 Hunter Pro-C controller. Beginning with a 3-station base unit, the Pro-C can be expanded with up to three more 3-station modules. Thus, a contractor no longer needs to stock eight different types of controllers (3-, 6-, 9- and 12-station units in both indoor and outdoor models)…he simply needs to keep on hand just three items (indoor and outdoor Pro-C base units and 3-station modules).