The Aico EI428 RadioLINK Relay Module is a brand new in box product designed for home security systems. This white module is powered by a hardwired source and requires 1 battery for operation. It comes with a battery included, making it convenient for installation and ensuring continuous functionality in the event of a power outage. Ideal for smoke and gas detectors, this Aico module provides a reliable and efficient solution for enhancing home security systems. Good through June 2034
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