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Universal Security Instruments Relay Module for Smoke and Fire Alarms is compatible with most USI electric and Universal security smoke alarm models. Features form C dry contacts. Contacts activate when the alarm sounds. Contacts deactivate shortly after alarm stops sounding. Relay controls auxiliary devices such as lights, sirens, bells, electric door closures, exit signs, exhaust fans, etc. Relay requires continuous 120VAC power. Mounts in junction box. Device is restriped for quick installation. Features a compact size of 3.5 inches. UL listed. 1 year limited warranty.
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