LB-20G security intercom
work with the master station to support more substation.

Features:

LB-20G security intercom,Expander,

1. The master expander of 20 routes can connect the model LB-10L and LB-20L to support

    more substation to work together according to your requirement.

2. The master and substation can intercom by duplex type.
3. Choose the end-jack basis on the transmit distance
4 .Connect the master by two wire non-polarity ,can output for alarm button.

Technical Parameter:

Working voltage:DC 12V

Working current:110mA

Work environment term:-10oC~60oC

Remind: Music

Size of device:200x95x55mm