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KB-3SD

AUDIO ONLY SUB MASTER HANDSET FOR KB (MA

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KB-3SD

The KB-3SD is an audio-only sub-master station for use in a KB-3MRD system. One or two KB-3SD’s can be used in place of KB-3HRD sub-master station.

Features :

Chime and receiver volume control
Optional selective door release with RY-3DL
Two-way communication between inside stations

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