DoorBird 423866492 Protective Glass for Sensor Area (D21X)

Keep your DoorBird Intercom & Entry Accessories performing at peak clarity with the Protective Glass for the D21x sensor area. This purpose-built spare part shields the sensor on D21x IP Video Door Stations from scratches, dirt accumulation and weather-related wear, ensuring consistent image quality for security and surveillance monitoring. Designed specifically for the D21x series and identified by manufacturer part number 423866492, the glass provides an exact fit for fast field replacement and minimal system downtime.

By protecting the sensor surface, this protective glass helps preserve accurate motion detection and clear video capture—critical for entry control, remote monitoring and evidence-grade recording. The durable construction reduces routine cleaning and lowers the risk of costly sensor repairs, delivering long-term value for installers, property managers and security integrators. Keep your intercom and entry systems looking professional while maintaining reliable surveillance performance. Order the DoorBird D21x sensor protective glass to restore clarity and extend device life — a simple upgrade that supports better monitoring and ongoing security operations.

• Protects the D21x sensor from scratches, dirt and environmental wear to preserve image clarity and reliable surveillance.
• Exact-fit replacement for DoorBird D21x IP Video Door Stations (Mfr. P/N 423866492) for quick field service and minimal downtime.
• Maintains optimal sensor performance for entry systems and monitoring, reducing maintenance and long-term repair costs.
• Durable spare part that prolongs device life and keeps intercom appearance professional for tenants and visitors.
• Easy to install replacement, ideal for security installers, facility managers and AV/IT technicians.