Wired Accessory Modules.

The UNO8 adds up to 8 zones to an UNO Panel, EVL4-SA or DUO-UNIVERSAL system.

The UNO4 adds up to 4 zones to an EVL4-SA or DUO-UNIVERSAL system.

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