{"product_id":"doorbird-423860919-d21x-call-button","title":"Doorbird 423860919 D21X Call Button","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe 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.\u003c\/p\u003e\n\u003cp\u003eThe 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.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eDirect replacement call button for D21X series door stations\u003c\/li\u003e\n  \u003cli\u003eSingle-unit package suitable for one call point per order\u003c\/li\u003e\n  \u003cli\u003eDesigned for exterior entry-point mounting\u003c\/li\u003e\n  \u003cli\u003eIntercom accessory classification for structured low-voltage systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use with DOORBIRD D21X series video door station systems. No additional model-level compatibility data was provided in the product listing.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation 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.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUnit of Measure\u003c\/strong\u003e: Each\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQuantity Per Package\u003c\/strong\u003e: 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCategory\u003c\/strong\u003e: Intercom Accessories\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: DOORBIRD\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 423860919\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DOORBIRD","offers":[{"title":"Default Title","offer_id":51558980616498,"sku":"423860919","price":336.91,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/ec70c414684f6177e79abcfbda3b48d9.jpg?v=1786424728","url":"https:\/\/voomisupply.com\/products\/doorbird-423860919-d21x-call-button","provider":"Voomi Supply","version":"1.0","type":"link"}