Bell Systems

Bell Black M51 THK Replacement Speech Module

Product code:P663A
Product price: Login for price

Replacement speech model for use with all M51 (THK) older models (square buttons and separate name) door entry systems to provide full duplex speech between the front door panel and the telephone. Totally encapsulated unit houses weather resistant plastic cone loud speakers and amplifier circuits.

  • Full Product Description

    Replacement speech model for use with all M51 (THK) older models (square buttons and separate name) door entry systems to provide full duplex speech between the front door panel and the telephone. Totally encapsulated unit houses weather resistant plastic cone loud speakers and amplifier circuits.


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