3 wire Survelience

Three-Wire Surveillance Kit
The three-wire surveillance kit consists of three modular components: a microphone, a PTT switch (various options available) and an earset. This allows the user to position the microphone to best fit the immediate need, i.e. transmit user's voice or pickup nearby conversations. Because each component is modular, they can be changed easily. In fact, the three-wire system is the industry's only surveillance kit that quickly converts from a three-wire to a two-wire system as the situation dictates.

Ear hanger, and ear insert are standard.

Coiled tube and open earmold can be purchased as accessories.

Specifications Microphone
Sensitivity	-38 dB plus or minus 2 dB @ 1Khz
Frequency Response	100 to 16,000 Hz
Current Consumption	50 uA Nom, 500 uA Max
Impedance	2.2KOhm Nom

Specifications Receiver
Sensitivity (Sound Pressure Level)	120 dB plus or minus 3 dB @ 1Khz
Frequency Range	20 to 3500 Hz
Impedance	250 Ohm

Specifications PTT Switch
PTT Type	Normally Opens Contacts
Operations	750,000 Nom
Operating Temperature Range	-30 degree to +70 degree Centigrade

Costs: Buy Online

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All Rights Reserved. Last modified: 02/07/2012

Send mail to webmaster@britears.com with questions or comments about this web site. Copyright © 2005 - 2011 Brite Ears, LLC © 2005 - 2011 E.A.R., Inc./Insta-Mold West.

All Rights Reserved. Last modified: 02/07/2012

Send mail to webmaster@britears.com with questions or comments about this web site.
Copyright © 2005 - 2011 Brite Ears, LLC © 2005 - 2011 E.A.R., Inc./Insta-Mold West.