ENTERLOK™ provides two-way natural voice communication from a master to remote (or vice versa). It has a total capacity of two (2) stations (1 Master, 1 Remote). The SM-201B's TALK and LISTEN controls provide the master with privacy and discreet hands free monitoring for improved security.

Low cost SM-201B master has a built-in voice amplifier, volume control, electronic tone signal, TALK, LISTEN and electric DOOR release (or other signaling device) buttons. Install the SM-201B on a standard 1 gang electrical box, or use our popular IH-400A cabinet for desk or surface mounting.

As you'd expect from LEE DAN®, ENTERLOK™ has a selection of over 20 remotes, including indoor, outdoor, vandal-proof, and patio horn styles. Remote stations are available with or without a call-in button to signal the master, and for flush, surface or desk mount use.

Only one (1) pair of twisted wire is needed between the master and remote speaker. Efficient low voltage design allows convenient hookup by do-it-yourselfers with our UL listed model PS-20A plug-in transformer.

Kit 1) SM-201KR: 1 each SM-201B, OR-103, OH-700, PS-20A

Kit 2) SM-201KS: 1 each SM-201B, OR-603SS, PS-20A