Wired Accessory Modules.

The UNO8 adds up to 8 zones & 2 outputs to an UNO Panel, Stand-Alone or UNIVERSAL system.

The UNO4 adds up to 4 zones & 2 outputs to a Stand-Alone or UNIVERSAL system.

Mounting plate for EVL4-SA plus expanders to fit in standard DSC or Honeywell enclosure.