The ViTRON Plus G3 is suitable for use in a PD6662 and EN50131-1 Grade 2 system, Environmental Class II. This detector features advanced electronics and extra-handsome looks in wall / ceiling or flush-mount design. ViTRON Plus microprocessor-based Glass-Break pattern analysis assures detection reliability and prevents false alarms. Full remote test makes testing easy. Simple to install, the ViTRON Plus G3 is elegantly designed to blend into any decor. Flush (single gang box / Gewiss), wall or ceiling mount.