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The DOORBIRD 423864795 is a nameplate bell button finished in RAL9007 (grey aluminum) for the D21X series video door station. It serves as the physical call button component used in intercom and access control installations. This part is sold as an individual unit and is intended for installation by security systems integrators, access control technicians, or experienced low-voltage professionals performing nameplate or button replacements on existing D21X door station assemblies.
This bell button is designed for use with the DOORBIRD D21X series door station, a product commonly installed in residential and light commercial applications where video intercom and remote door release functionality is required. It is categorized as an intercom accessory and is suited for retrofit or service scenarios where the original call button or nameplate component needs to be replaced without swapping out the full door station unit.
Designed as an OEM-style replacement bell button for the DOORBIRD D21X series video door station. No additional compatible model numbers were specified in available product data.
Installation should be performed by a qualified low-voltage technician or access control professional familiar with intercom door station assemblies. Power to the door station should be disconnected before removing or replacing any button or nameplate components. Follow the manufacturer service documentation for the D21X series to ensure proper seating and connection of the replacement button. Local low-voltage and access control installation codes may apply depending on jurisdiction.
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