The DoorKing 1812-004 is a genuine replacement blue LED lighted push button switch used on select DoorKing intercom and telephone entry systems. This button is commonly used for call, activation, or front-panel input functions depending on the specific DoorKing model and panel layout. If the original button is cracked, sticking, intermittent, or the LED ring no longer illuminates, replacing the switch helps restore reliable user operation and clear visibility at the entry point.

Key Features:

• Genuine DoorKing replacement LED lighted push button
• Blue illuminated LED ring improves visibility for nighttime or low-light use
• Designed for use on specific DoorKing intercoms and entry systems (model-dependent)
• Replaces worn, damaged, or non-responsive push buttons to restore normal operation
• OEM fit and electrical interface for compatible DoorKing front panels

Technical Specifications:

• Part Number: 1812-004
• Part Type: LED Lighted Push Button Switch
• LED Color: Blue
• Application: DoorKing intercom and telephone entry system panels (verify by manual)
• Brand: DoorKing (DKS)

Conclusion:
If you need an OEM replacement for a blue LED lighted push button used on compatible DoorKing intercom or telephone entry systems, the DoorKing 1812-004 is the correct genuine part for restoring dependable front-panel operation. Please confirm compatibility in your DoorKing manual before ordering to ensure the right match for your exact system.