The Laser Surveillance Defeater is a unique new countermeasure device against laser surveillance. How does laser surveillance work? It's quite sophisticated, but in a nutshell, an invisible laser beam is focused on a window. Voices and sound from within the target area are absorbed by the window and transmitted onto the laser beam (called "modulation"). The receiver (at the other end of the beam) then demodulates, processes, and amplifies the signal. The result-your private conversations inside your office or home can be secretly listened in on and recorded by a spy a mile away! Since these systems are expensive and sales are restricted in the U.S., they are used primarily by government agencies.
The Laser Surveillance Defeater is a unique new countermeasure device against laser surveillance. How does laser surveillance work? It's quite sophisticated, but in a nutshell, an invisible laser beam is focused on a window. Voices and sound from within the target area are absorbed by the window and transmitted onto the laser beam (called "modulation"). The receiver (at the other end of the beam) then demodulates, processes, and amplifies the signal. The result-your private conversations inside your office or home can be secretly listened in on and recorded by a spy a mile away! Since these systems are expensive and sales are restricted in the U.S., they are used primarily by government agencies. The Laser Surveillance Defeater is ideal for government offices, corporate facilities, high-rise buildings, even homes-- any location that has a window which can be seen from a spy's location is at potential risk of laser surveillance. This device is completely portable; it installs and un-installs on windows instantly with its integral suction component. Powered by one 9-volt alkaline battery (included), which provides approximately 500 hours of operation. Equipped with on/off switch and bright blue LED power indicator. Deploy one unit per window.
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