The Laser-COMPACT offers a simple, cost effective solution for the protection of single and smaller environments that occupy less than 5000 sq.ft (500 sq.m). It offers the same wide sensitivity range as the Laser-PLUS and Laser-SCANNER - 0.0015 to 6% obs/ft (0.005 to 20% obs/m). The Laser-COMPACT supports three configurable alarm levels (Alert, Pre-Alarm, Fire) and comes in two versions. One version interfaces via relays only (RO), and the other across either relays or VESDA net (VN).