The Elmdene 7422-SFG-G3F is a high-specification Grade 3 external siren module often used in professional alarm installations, including those by ADT. This guide provides a comprehensive overview of its features, installation procedures, and wiring based on technical documentation for the Elmdene 7422 and Grade 3 sounder ranges.
Tamper Return and Tamper Supply (connect to panel tamper zone). elmdene 7422-sfg-g3f manual
If the unit emits fast clicks during a self-test when the cover is closed, the battery may be faulty or disconnected. The Elmdene 7422-SFG-G3F is a high-specification Grade 3