Expand your OmniPro II or Omni II automation controller with up to eight of these expansion modules! These expansion modules provide 16 additional inputs for additional security/fire zones, temperature inputs, etc., and 16 extra outputs to control sprinkler systems, pumps, motors, circuit breakers and more. The 16-Zone/16-Output Expansion Board on a Universal Mounting Plate includes a 16-input/16-output expansion board on a universal mounting plate with accessories kit, "HAI Automation Inside" label, and instructions for installation in Siemon, Leviton, Ustec, OnQ and "open house" type structured wiring enclosures. Expansion modules can be mounted up to 1,000 feet from the main controller. Each model has its own power supply and battery. Expansion modules are available in two different configurations, with optional relay expansion modules.