• Adapter Plate — a 6-3/8” (162 mm) diameter, 1/4” (6.4 mm) deep mounting accessory designed to provide a secure and aesthetically pleasing installation for TrueAlarm sensor bases. The plate ensures proper alignment, stability, and surface coverage when mounting sensors on irregular or oversized junction boxes. Its durable construction and low-profile design make it suitable for both new installations and retrofit applications.