Alpha TTU-4 Inmate/Visitor Intercom-15VDC

The Alpha TTU-4 Inmate/Visitor Intercom operates on 15 VDC and supports half-duplex voice communication without pushbuttons. It enables clear two-way, hands-free conversations through voice-operated transmission (VOX).

This unit features a counter-mounted aluminum housing designed for easy installation without cutting into barriers. Its compact profile fits discreetly in settings requiring tamper-resistant audio communication.

Included with the TTU-4 are the 15 VDC power supply and mounting hardware. The design eliminates gooseneck microphones and external controls, reducing potential hazards in secure environments.