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Different types of speak thru grills  and window intercoms 

designed for  Ticket windows - Teller Windows- Box Offices- Stadium   -Prison  thru wall and any Talk through applications

from  Low level Security Speak Thru Grills-  which are  non amplified

to  level 1 & 3 Bullet Resistant Window Speak Thru Grills   or  Bullet Resistant Amplified Window intercoms

Correctional Intercoms


Bullet Resistant Speak Thru


Made of Heavy Stainless Steel with Brushed Finish
Louvers Spaced to Deflect Projectiles

Level 3 Bullet Resistance (.44 Magnum)

 This 6"  diameter grill is  designed for use with bullet resistant glass, acrylic or polycarbonate.

Made of heavy stainless steel, 

Accommodates glazing thicknesses from 1-3/16" to 1-7/8" (30 to 48 mm).

Optional Spacer Rings available for use with glazing materials less than 1-3/16" (30 mm) thick

require a 5 inch hole in glass

Level 3 Rated $ 550 plus freight

Desk Mounted No cutting of glass required


Aluminum Speak Thru Grill

requires a 3 to 4 inch hole 

measure 5"1/8 Diameter

Metal speak thru

4 inch metal $ 215 each 6 inch metal $235.00

for 1/4 inch glass only


4 inch Lucite  $ 195 each 6 inch metal $235.00

for 1/4 inch glass only

Dark  Black Grill

measure 5"1/8 Diameter



Wedge style intercom

No Cutting of Glass Required


Gold   Grill

measure 5"1/8 Diameter



Bullet Resistant

Plate Grill



Non-Bullet Resistant

 5 and 7" Grill

Bullet Resistant

Circular backer

for acrylic or poly


Desk Station with window intercom

Bright Satin Anodized Alum. Grill

Correctional Intercom

Hands free

  Bullet Resistant  Model

level 1 or level 3  Bullet Resistance Rated Window Intercom



Window  Intercom  Plug in  110 Volts AC



Ticket Window Intercom

Lithium Battery Powered



The Affordable solution to the thru glass amplified  Communication



Crystal Clear Sound  Window Intercoms Designed to Last

Designed for APPLICATIONS where hearing the customer is difficult, due to excessive background noise, windy environments, lobby's with bad acoustics,  excessive hard services tile, cement  or other  poor sound transmission environments, often used in  Detention Facilities, walk up windows, ski resorts ticket booths,  Campus ticket offices, pharmacy  windows, gold and silver exchange houses , Movie Theaters, Hospitals, Banks, Subways stations, Portable Ticket Booths, loud lobby areas   open air environments, like ski resorts,  college campuses

Or anywhere that  there is excessive back ground noise present .


AC Model Starting at $ 795.00 plus shipping

Lithium Battery Powered Model $ 895.00

Adapter Plates sold separate for holes larger than 3.5 inches or less than 3 inches

Bullet Resistant Inserts Available

for Ac model  a 2 piece 3/8"  tube  measuring 2' ft  is available to conceal wires to the intercom

The Window Intercom is four inches in diameter, and equipped with an operator-side

gooseneck flex  Microphone power on/off switch, power-on

green LED, "talk" volume control and "listen" volume


The exterior, or customer side, is equipped with a 2 1/4" ferrite, magnet speaker and electric Microphone

The speaker and Microphone  are located so as not to be damaged by

ordinary tools such as screw drivers and pliers.

The  intercom  can  have an optional Class III bullet-resistive insert ,installed   able to withstand a standard bullet from a .357 Magnum firearm.

The intercom is constructed of machined aluminum, and finished in silver or black  anodized aluminum . 



Two-way communication is accomplished through the use of speakers and Microphone  located on each side of the partition.

Intercom is Housed within a rugged enclosure

Window intercom is an electronic two-way, hands-free audio

Communications device (duplex) between a glass or wall partition.


The inside operator controls the operation by speaking into the gooseneck Microphone

The window intercom unit automatically initiates the "listen" mode when the operator discontinues speaking into the Microphone


Window Intercom contains two voice channels, each incorporating a Microphone amplifier, VOX switch, compressor, background

noise monitor, attenuator controls, level detectors, and a bridge amplifier.

Note: The sound amplifier does not exceed a 0.2% total harmonic distortion rating.

 Designed to Last with Rugged Aluminum Construction

Compact 4.0" diameter

No adapter required for holes in glass partitions less than 3.5 inches

Design Class II Bullet Resistive Insert available as an option

Duplex Communication standard

Voice Activated Switch VOX

Background Noise Level Monitoring Level

Detection and Attenuation Control

Linear Volume Control


 Optional : Bullet Resistance protection

Bullet Resistance is  Rated Based on .357 Magnum loads With Bullet Resistant Insert installed

Indicate level of glass present before ordering and thickness.

Note various Bullet resistant glass cant be cut,

In some cases if a hole is already present, over tightening  the intercom can cause the glass to  crack or spider if  various layers are laminated


One year warranty on all intercoms

We have had these units in use for many years with no disturbance in sound quality

On other units  available on the market many of the Microphone   become defective from constantly moving the Microphone , and often times have to be sent in for repair, this is not the case with this unit.  


General Information

Thru Glass Window Intercom with 18 Inch Microphone.  

Available with a 18 Microphone or  with head set jack plug  in Place of Gooseneck Microphone

Additional options  include an intercom with both a flex Microphone and a headset plug in Microphone and headset

Bullet Resistant Adapter Plates are available as an  Option 

Available at time of order

Note for this intercom you  can mount unit ,in up to a 3.5 hole  Note ,if larger than  3.5  Diameter hole an adapter plate will be required this is a two piece section

This Intercom is Available in AC wall powered  or  Battery Powered with a  Lithium Ion Battery  powered providing up to a  12 18 hour talk time before recharge is required

( optional)

Flex Microphone  only  or headset jack only or both

Optional plug in  Head set  available


Optional bullet resistant insert for up to level 3 protection 





The thru glass model is easily installed in a partition with either 3.0 " or 3.5" cutout.

An optional  adapter plate is available for 4" cutouts, or larger 5 6 7 special order two plate adapter plates

The exterior plate is assembled to the interior housing via four bolts provided.


Barrier thickness must be specified.

The interior control plate is then fastened to the housing with four tamper-resistant screws.

Gaskets prevent the intercom from scratching the surface of the barrier.

An AC adapter is supplied for continuous duty.

The adaptor steps down 120V AC input to filtered 12V DC output for class II installations.

Available in a lithium battery powered model

Note for AC Models a 2 piece tubular sections are available to conceal wires into a counter top


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 Product Question's: 915 - 240-4747