audio door phone

audio door phone is a simple, wired or wireless intercom system for clear two-way communication between a visitor at the door/gate and occupants inside, featuring an outdoor unit (speaker/mic) and indoor unit (speaker/mic/button) for visitor identification and remote door release, ensuring security and convenience with easy DIY setup and durable designs like aluminum exteriors. 
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• Two-Way Communication: Allows residents to talk with visitors before granting access, preventing unauthorized entry.

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• Clear Audio : Uses high-quality circuits for crisp, clear voice transmission, even over distances (e.g., 100-200m).

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• Door Release Function: An electric lock release button on the indoor unit lets you unlock the door remotely for visitors.

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• Durable Outdoor Unit : Often made from anti-oxidation, durable aluminum, suitable for surface or flush mounting near the entrance.

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• Easy Installation : Designed for DIY installation, often with simple 2-wire connections for wired models, reducing complexity.

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• Visitor Identification : Some models can display names or room numbers on the outdoor unit and have LED indicators.

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• Expandability : Supports multiple indoor stations for larger homes or apartments (specific to models). 

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• Wired: RL-3206, RL-3205, RL-3208A (2-wire systems).

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• Wireless: RL-0510C (2.4GHz), RL-0518L (433MHz). 

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1. Visitor presses the call button on the outdoor unit.

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2. The indoor unit rings and lights up, showing someone is at the door.

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3. You answer using the indoor unit’s speaker and microphone.

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4. After identifying the visitor, you press the door release button to unlock the door electronically. 

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