The Hikvision DS-KD-PMR extension module for IP video intercom systems transmits audio to hearing aids via a built-in induction loop antenna. Its indicators cover calls, door unlocking, two-way communication, and induction loop operation.

It connects to KD8003 door stations via RS-485 and power interfaces, and can be flush-mounted or surface-mounted.

• Type: Induction loop and indicator extension module
• Compatibility: KD8003 door stations
• Connectivity: RS-485 and power interfaces
• Protection: IP65
• Impedance: 4 Ω
• Frequency response: 100 Hz–3800 Hz
• Signal-to-noise ratio: ≥ 47 dB (@10 cm)
• Power consumption: ≤ 4 W / 6 W / 8 W
• Operating temperature: -40 °C to 55 °C
• Operating humidity: 10%–90%
• Mounting: Flush-mounted or surface-mounted