The Zeta duct unit allows air in a ventilation duct to be monitored for smoke via a smoke detector mounted externally in a sealed chamber. The unit comes supplied with 2 sampling probes (one in & one out) which are mounted through the duct in the centre of the air flow.

There are 3 versions of the unit available which are as follows;

ZT-DU – enclosure supplied with a Fyreye common base (FE-CB) allowing either a conventional or addressable Fyreye detector to be connected and wired as part a system.

ZT-DU/12 – enclosure c/w Fyeye base and relay board with form C relay outputs for alarm and for fault which requires 12V power supply.

ZT-DU/230 - enclosure c/w Fyeye base and relay board with form C relay outputs for alarm and for fault which requires 230V power supply.