Computerized Polygraph > LX4000 Polygraph System > Components and Options

The PLE Coupler is designed for use with the LX4000 computer polygraph. A total of three capacitively-coupled modes are available with time constants of 0.1, 1.0, and 5.0 seconds to give the examiner the option to select the time constant which provides the most useful recording with each subject.
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