NST Circular Stainless Speak Thru

The NST Circular Stainless Steel Speak Thru is an economical speak hole cover for interior applications.   It allows communication and maintains security in a window.  The product is manufactured with polished stainless Balistex(R) steel. The speak thru can be produced in five protection levels:  Level A, Level I to Level IV.  A NST speak thru can be manufactures to any hole size.

Standard Features

• Balistex(R) construction
• Circular appearance
• Produced for specified diameter hole
• Stainless steel fastening
• Voice transmission design
• Polished stainless steel finish

NTST Circular Transparent Speak Thru

The NTST Transparent Speak Thru provides the ability to communicate and maintain security in the window.   Being transparent, the NTST speak thru is not distracting as are other speak thrus plates, grilles and rings.  The product is manufactured with security and bullet resistant clear composite material. The NTST is fabricated for three ballistic levels, Level A, Level I, and Level III.  The assembly can be installed into exterior walls as well as interior applications.   the exterior product has a draft shield to prevent the loss of heat or cool air while allowing voice transmission.