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The DOORBIRD 423864450 is a replacement bell button designed for the D21X series video door station. Finished in RAL3000 flame red, this component provides a color-matched call button for installations where the standard finish has been damaged or a specific color scheme is required. The button integrates directly with compatible D21X intercom units and is sold as a single unit. Installation is handled by low-voltage intercom technicians or security system integrators familiar with door station hardware.
This bell button is suited for residential and light commercial door station installations using the DOORBIRD D21X platform. It is a named replacement accessory for that series, making it the appropriate service part when the original call button requires replacement due to wear, damage, or a color-change retrofit.
Designed as an OEM-style replacement bell button for the DOORBIRD D21X series video door station.
Installation should be performed by a qualified low-voltage technician or security system integrator. Disconnect power to the door station before disassembling the unit or removing the existing button. Follow the manufacturer service documentation for the D21X series when reassembling to ensure proper seating and weatherproofing of the assembly.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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