Estación maestra de audio para llamadas AIRPHONE LEM-3 / LEM3, intercomunicador de 650 pies (NUEVA caja abierta)

Three buttons with LED indicators allow the master intercom to direct a call and communicate with the desired door or sub-master intercom. The housing is white plastic and mounts to a wall. AIPHONE LEM-3 3-Call Audio Master Station- Open Voice Selective Call Master Intercom.

eBay