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ELMDENE 7422 PCB. Manufacturer: Elmdene. For ADT 7422 Live / DummyBell Box. Model: 7422. There are two types of ADT bell boxes: 7422 and 7423. This module will only fit the 7422 ADT box properly but can be retro fitted into other bell boxes if you secure it properly.
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.