It is a small volume of 52 pages in which is described in a simply but carefully the flagship system among the security solutions Farfisa, the Duo System. The 2 non-polarized wires technology is ideal for large complexes because:
- simple wiring and configuration;
- up to 20000 users,
- up to 1000 entry door panels,
- video calls on smartphones.
With big product pictures, detailed descriptions, tables and diagrams with the new Duo catalogue you can really enter the Duo world.
