A full featured master station combining an outboard power supply with the facilities to control two independent communications circuits.

 Beltpack, single circuit. Portable headset station may be worn on the belt or hung on the wall by its sturdy belt clip.

 True two circuit unit. The BP-2 mixes the incoming audio from both circuits to one earphone.

Intercom headset/handset station on a flat plate for flush mounting. Fits 3-gang masonry box.

Desktop or wall-mount Intercom headset/handset station. Sloped metal cabinet. Rubber feet and keyhole mounting slots.

 Flush mount headset station fits 2-gang electrical box or console.

Strobe light with switchable sonic alert.

 Signal strobe

2 user intercom system includes: AC adapter, system interface with 2 BP-1s and 2 SMH310s.