Since 1993, the Lafayette Instrument Company Computerized Polygraph System has been a mainstay in the Polygraph industry. Today our Computerized Polygraph Line is built upon our LX4000 and LX5000 Polygraph Systems.

You can simultaneously record up to 9 channels. The system's small, compact design makes transport and storage very easy.
The LX4000 System combines conventional polygraph procedure with a sophisticated state-of-the-art computer. A total of seven channels can be recorded at one time.
A new LX5000, LX4000 and Accessories Brochure is available for download in our Downloads area!
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