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Laser Listener, Science Project Demo System

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Product Description

This item is currently being revised -- please check back in Spring of 2017 for updates.


Long Range Laser Window Bounce Listeners
and Optical Voice Communication Systems

Remarkable concept where you listen to sounds picked up from a reflecting surface illuminated by a laser. These light reflections, or scatter, are reproduced back to the original sound by our special optical receiver.

Assembled laser and receiver modules may be placed on video tripods and temporarily aligned for limited performance demonstration systems. They may also be enclosed as shown in the instructions for use as a field worthy device with a potential range of up to 500 feet. May be used as a long range laser voice communicator with a usable range of up to 10 miles, depending on line of sight and atmospheric conditions. Also serves as a low-cost audio surveillance science project or useful device for listening to power line faults, over-pressured pipes, etc.

This item is assembled and ready to use.
It is also available as a kit with plans and all parts, requiring assembly.
Or as plans (paper or downloadable versions), with parts and assembly required.


Plans show 2 systems ranging from a low cost science project to a long range infra red surveillance system. Includes LVC1 long range optical voice communication system.

Further Operational Information (Free Download)

Science Project Demonstration System

Range of Up To 100'

You setup the assembled modules (included) on individual video tripods (not included) and demonstrate this remarkable property of laser light.

Includes LM650P3 Laser Diode Module and assembled LLR30 Optical Receiver ready to setup and use.

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