This zone input device is an addressable two-zone input expander for Honeywell V-Plex® addressable systems. It is ideal for systems where additional zone inputs are required. The device provides a supervised and unsupervised zone that is compatible with any conventional detection device providing a dry contact output. Examples of these devices are door and window contacts, motion, glass, smoke and heat detectors, Fire Pull Stations and help-request buttons. It can also be used to monitor machine status outputs for normal, trouble and alarm status, environmental conditions and in other critical status applications.