Doorbird 423900776 Intercom Accessory

Product Description

The DOORBIRD 423900776 is an intercom accessory designed for use with compatible DOORBIRD door station and intercom systems. Sold as a single unit, this part supports the functionality of installed intercom equipment in residential and light commercial applications. Licensed technicians and low-voltage installers typically handle procurement and installation of this component as part of a broader door entry or access control system. The part reference FP D21DKH DB703 identifies this accessory within the DOORBIRD product line.

This accessory fits within DOORBIRD intercom and door station installations. It is suited for residential entryway systems and light commercial access control setups where DOORBIRD equipment is already in place. Installers sourcing replacement or supplemental components for an existing DOORBIRD system will recognize this part by its manufacturer part number. Specific system model compatibility should be confirmed against the DOORBIRD documentation for the target installation.

Key Features

• Designed for use with DOORBIRD intercom and door station systems
• Sold as a single unit per package
• OEM-referenced part for accurate replacement sourcing
• Compact form factor appropriate for integrated door entry hardware

Compatibility

Designed as an OEM-style replacement or supplemental accessory for DOORBIRD intercom systems. Confirm compatibility with the target DOORBIRD door station model before installation.

Installation Notes

Installation should be performed by a qualified low-voltage technician or licensed electrician familiar with intercom and access control systems. Power down the door station and disconnect any associated low-voltage wiring before servicing or replacing components. Follow all applicable local codes and the manufacturer installation documentation for the specific DOORBIRD system in use.