TTU-4
Designed for low ambient noise environments that require an
unobtrusive, yet tamper-resistant voice communication system,
such as inmate-to-visitor communications. The counter-mounted
design eliminates the need for cutting into a barrier. |
TTU-5
Designed for high-ambient noise environments and intended for
in-wall installations requiring flush-mounting and bullet resistance.
Used for communication between prisoners in a dayroom and a
guard in the corridor. |
