Zone Expander SA4219-1 Honeywell Alarm Control Module

Description

The SA4219-1 from Honeywell is a wired zone expansion module that adds up to eight additional supervised zones to compatible control panels. It enhances system flexibility by allowing integration of more sensors such as door/window contacts, motion detectors, and other security devices. This module connects via keypad wiring and supports normally closed or end-of-line resistor supervision. It can be mounted inside the control cabinet or remotely, with built-in tamper protection to trigger alerts if disconnected or compromised.