Fire-Lite 411UDAC Fire-Watch Stand-Alone Slave Fire Alarm Communicator, Dual-Line, 4-Channel, Red CabinetProduct Overview The Fire Watch 411UDAC from Fire Lite is a compact, multifaceted, stand alone or slave Fire Alarm Communicator designed for a variety of fire and non fire applications. It provides four channels (inputs) that accept waterflow devices, two and four wire smoke detectors, pull stations, and other normally open contact devices. The 411UDAC is a cost effective solution for applications that require an existing (or new) Fire Alarm Control