Doorbird 423860919 D21X Call Button

Product Description

The DOORBIRD 423860919 is a call button designed as a replacement or supplemental component for the D21X series video door station. It provides the physical call-trigger interface that residents and visitors use to initiate a call to the interior unit. This component is an intercom accessory intended for installation by low-voltage technicians, security integrators, or experienced installers working on access control and video intercom systems. It ships as a single unit and is suited for residential and light commercial entry-point installations.

The 423860919 call button is intended for use with DOORBIRD D21X series door stations. It is typically installed at exterior entry points such as main doors, gates, or building lobbies where a dedicated call-trigger point is needed. This accessory is relevant in retrofit scenarios where the original call button has worn out or in new installations requiring an additional call point on a D21X-compatible system.

Key Features

• Direct replacement call button for D21X series door stations
• Single-unit package suitable for one call point per order
• Designed for exterior entry-point mounting
• Intercom accessory classification for structured low-voltage systems

Compatibility

Designed for use with DOORBIRD D21X series video door station systems. No additional model-level compatibility data was provided in the product listing.

Installation Notes

Installation should be performed by a qualified low-voltage technician or licensed security integrator familiar with video intercom and access control systems. Disconnect power from the door station before removing or replacing any components. Follow local building codes and manufacturer wiring guidelines for low-voltage intercom installations. Verify compatibility with the host door station unit before completing installation.