The RY-3DL provides selective door release capability with the KB-3MRD video sentry color tilt, MK-2MCD video sentry pan tilt plus, JA-2MCD hands free color video pan tilt, JF-2MED hands free color video, or IE-2AD(U) chime tone intercom systems. Normally open and normally closed outputs are available.
RY-3DL Selective Door Release Adapter Features:
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