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http://en.vizit-group.com/production7103/
Домофоны и видеодомофоны VIZIT«MODUS-N»
ENTRANCE DOORS  Pedestrian Gates Access Control Systems

BK-10
BK-10
Commutator to connect up to 10 apartment handsets to intercom line.
BK-30M
BK-30M
Commutator to connect up to 30 apartment handsets to intercom line.
BK-100M
BK-100M
Commutator to connect up to 100 apartment handsets to intercom line.
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