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Ships within 48 hours · Estimated delivery Oct 27 - Nov 1
Output Format: 26
Weather-Resistant: Operates in temperatures as low as -40°F with appropriate heaters
Anti-Tailgating Feature: Prevents unauthorized entry by closing the gate immediately after vehicle passage
offering precision control and ensuring your gate operates reliably and safely
Liftmaster LM21AFCB Advance Fire Control Release Device lm-bmt Output Format: 26Advanced Fire Release Control for Motorized and Manual Door Systems The LiftMaster LM21AFCB is a UL listed fire control release device engineered to automatically close motorized or manual fire rated doors in the event of an alarm or power loss. Designed for dry indoor installations, the LM21AFCB offers programmable delay settings, auxiliary limit switch support, 3 cycle obstruction logic, and an integrated annunciator connection. It supports up to
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