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Quick Verdict Electric latch retraction (ELR) pulls the latchbolt into the device, so the door opens with a push or pull and nothing on the outside has to turn. Electrified exit trim leaves the latch projected and only decides whether the outside lever will retract it. Choose ELR when the door has an automatic or low-energy operator, when it must stand unlatched during business hours, or when users cannot be expected to operate a lever. Choose el… Read more