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Lie Detector, Polygraph

The most sophisticated products for detecting lies

Chicago Polygraph Institute (CPI) offers its students the best instruments in the world manufactured by Lafayette Instrument Company (USA) - the global leader in the manufacture of polygraphs, producing its first lie detector in the early 1950's.

Chicago Polygraph Institute students purchasing Lafayette Instrument Company polygraph equipment via CPI are entitled to a special educational discount.

Chicago Polygraph Institute provides the following lie detectors:

  • Computerized Polygraph LX6-S
  • Computerized Polygraph LX5000-S
  • Computerized Polygraph LX4000-S

COMPUTERIZED POLYGRAPH LX6-S

Polygraph LX6-S

The Computerized Polygraph LX6-S is the next generation 10-channel polygraph system. The LX6-S is the world's most advanced polygraph (lie detector) capable of simultaneously recording changes in several physiological variables while the subject is asked a series of questions pertaining to a specific issue under investigation. The charts generated during the polygraph examination are interpreted by a polygraph examiner.

The LX6-S computerized polygraph records, stores, and analyzes physiological changes during a polygraph examination. It combines conventional polygraph procedure with a sophisticated state-of-the-art computer. With the basic system a total of nine channels can be recorded at one time.

THE LX6-S PROVIDES THE FOLLOWING BENEFITS

  • Superior Fischer Connectors brand connections
  • Electronic sensors cannot be incorrectly connected
  • Recessed pneumatic ports
  • Durable and easy to grip molded cables
  • Rugged molded and textured enclosure
  • Extended measurement ranges
  • Improved port layout and labeling
  • Enclosure weighted and designed for added stability
  • 32 Bit data resolution
  • Additional AUX port (10-Channels)
  • Standard HID USB driver (no FTDI driver required)
  • Best in industry electronics and EDA
  • Compatible with current LXSoftware and future Lafayette polygraph software
  • Package includes same accessories as current systems
  • LX6 exclusive 5-year instrument warranty

When using the basic LX6-S system, results are derived from the following parameters: Pneumatic Pneumo - respiration, EDA - electrodermal activity, Cardio - blood volume/pulse rate, and Activity (seat pad) for detecting any movement by the subject.

The LX6-S polygraph can record additional parameters utilizing the following accessories: Photoelectric Plethysmograph (PPG), model 76604-6, Activity Sensor Arm Pads, model 76879A-6, Activity Sensor Feet Pads, model 76879F-6, Masseter Headphone System, model 76879HM-6, Fingerprint/Signature Scanner, model LXSIGPRINT, Digital Web Camera, model LX-WEBCAM, and a microphone for voice recording.

COMPUTERIZED POLYGRAPH LX6-S (BASIC PACKAGE)

  • LX6 Polygraph Data Acquisition System, model LX6
  • LXSoftware Bundle with OSS and APL's Polyscore Scoring Algorithm
  • Activity Sensor Seat Pad for LX6, model 76879S-6
  • Silver Color-Coded Pneumatic Pneumo Assembly for LX6, model 76513-6T
  • Blue Color-Coded Pneumatic Pneumo Assembly for LX6, model 76513-6B
  • 7-Foot EDA Cable with Electrodes for LX6-S, model 76640-6
  • Pump Bulb Assembly for LX6-S, model 76506-6
  • Standard Kovacic Arm Cuff for LX6-S, model 76530-6
  • Storage Backpack, model LX-1050BP

Export License:

The U.S. Department of Commerce requires an export license for any polygraph system shipment with an ultimate destination other than: Albania, Australia, Belgium, Bulgaria, Canada, Croatia, Czech Republic, Denmark, Estonia, France, Germany, Greece, Hungary, Iceland, Italy, Japan, Latvia, Lithuania, Luxembourg, Netherlands, New Zealand, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Turkey, or United Kingdom. It is against U.S. Law to ship a polygraph system to any other country without an export license. If the ultimate destination is not one of the above listed countries, contact Chicago Polygraph Institute for the required license application forms.

Technical Specifications:


  • Requires LXSoftware 11.7.1+
  • Size (LX6): 8.1" x 3.22" x 1.21" (20.6 x 8.2 x 3 cm)
  • Weight (LX6): 1 lb (454 g)
  • Channels: 10 (6 Physiological, 4 Auxiliary)
  • Isolation: 5000Vrms isolation on all channels
  • Enclosure Material: ABS
  • Power: USB connection
  • Data Transfer Rate: 360 samples/second across all channels
  • Resolution: 32-bit analog to digital conversion
  • Operating Temperature: 32 to 125 F (0 to 52 C)
  • Storage Temperature: -44 to 150 F (-40 to 66 C)
  • Relative Humidity: 20% to 80% Non-condensating
  • Meets ASTM standards
  • Enclosure UL 94V-0 rated
  • CE certified/meets EMC directive
  • Warranty: 5 years
  • LX6 Sensor Channels:
  • 1 Cardio Channel: 0 to 140 mmHg
  • 2 Pneumatic Pneumo Channels: extended pressure range
  • 2 EDA Channels: GSR: 4 A constant current, range of 10 kO to 2.3 MO; GSC: range of 5 kO to 4.0 MO; Isolation: additional 2000Vrms
  • 1 PPG Channel: PPG finger clip: 0.47 second time constant, 940 nm
  • 4 Activity Sensor Channels: 0 to 4 V Analog Input

COMPUTERIZED POLYGRAPH LX5000-S

Polygraph LX5000-SW

The Computerized Polygraph LX5000-S is the world's most advanced polygraph (lie detector) capable of simultaneously recording changes in several physiological variables while the subject is asked a series of questions pertaining to a specific issue under investigation. The charts generated during the polygraph examination are interpreted by a polygraph examiner.

The LX5000-S computerized polygraph records, stores, and analyzes physiological changes during a polygraph examination. It combines conventional polygraph procedure with a sophisticated state-of-the-art computer. With the basic system a total of nine channels can be recorded at one time.

THE LX5000-S PROVIDES THE FOLLOWING BENEFITS

  • Data transfer rate up to 360 samples per second across all channels
  • 24-bit analog to digital conversion
  • Wired USB connectivity
  • Small, compact design making transport and storage easy
  • Expandable: can add up to 3 additional modules
  • Extended measurement ranges
  • Selectable GSR or GSC channel
  • PPG channel included
  • Durable, yet lightweight design
  • Operates with same trusted, state-of-the-art LXSoftware
  • 3 year warranty and lifetime technical support

When using the basic LX5000-S system, results are derived from the following parameters: Pneumatic Pneumo - respiration (two channels), EDA - electrodermal activity (two channels; selectable GSR or GSC channel), Cardio - blood volume/pulse rate (one channel), and Activity (seat pad) for detecting any movement by the subject (1 channel).

The LX5000-S polygraph can record additional parameters utilizing the following accessories: Photoelectric Plethysmograph, model 76604A-5L, Activity Sensor Arm Pads, model 76879A, Activity Sensor Feet Pads, model 76879F, Activity Sensor Feet Pad, model 76870FS, Masseter Headphone System, model 76879HM, Fingerprint/Signature Scanner, model LXSIGPRINT, Digital Web Camera, model LX-WEBCAM, and a microphone for voice recording.

COMPUTERIZED POLYGRAPH LX5000-S (BASIC PACKAGE)

  • Data Acquisition System, model LX5000
  • Activity Sensor Seat Pad (SEAT), model 76879S
  • Pneumo Chest Assembly/Stomach (P1), model 76513A-T
  • Pneumo Chest Assembly/Chest (P2), model 76513A-B
  • Pump Bulb with Gauge (BULB), model 76506A-5
  • Standard Blood Pressure Cuff (CUFF), model 76530A-5
  • Disposable Ag/AgCl EDA Electrode Assembly, model 76640A-5L
  • LX Polygraph Software, model LXSOFTWARE (latest version)
  • POLYSCORE Scoring Algorithm
  • Objective Scoring System OSS-3
  • Lafayette Drug Reference
  • Comprehensive Instruction Manual on CD-ROM
  • All Necessary Cabling, model 3-952-019, etc.
  • LX System Carrying Bag with Logo, model LX-1040S
  • 3-Year Warranty on Hardware (LX5000)
  • 1-Year Warranty on Accessories
  • Lifetime Warranty on Activity Sensors (76879S, 76879A, 76879F, and 76879HM)
  • Lifetime Technical Support

Note:

The Disposable Ag/AgCl EDA Electrode Assembly, model 76640A-5L, consists of the following components: Set of 50 Disposable Ag/AgCl Adhesive Finger EDA Sensors, model 76642D, the EDA Snap Finger Electrode (set of two), model 76642SP, and the EDA Electrode Cable, model 76643A-SL.

The LX5000-S works with the LX Polygraph Software (model LXSOFTWARE) - the world's most sophisticated polygraph software. Windows-based since 1994, the LX Polygraph Software offers unparalleled ease of use and proven reliability.

Polygraph charts are recorded in much the same manner as conventional polygraph equipment with a smooth scrolling display moving from right to left. The tracings recorded are in real-time and are truly rectilinear, so polygraph charts can be easily interpreted. The system can be operated using a mouse/pointing device or the keyboard.

Export License:

The U.S. Department of Commerce requires an export license for any polygraph system shipment with an ultimate destination other than: Albania, Australia, Belgium, Bulgaria, Canada, Croatia, Czech Republic, Denmark, Estonia, France, Germany, Greece, Hungary, Iceland, Italy, Japan, Latvia, Lithuania, Luxembourg, Netherlands, New Zealand, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Turkey, or United Kingdom. It is against U.S. Law to ship a polygraph system to any other country without an export license. If the ultimate destination is not one of the above listed countries, contact Chicago Polygraph Institute for the required license application forms.

Technical Specifications:


  • Size: 7 3/8"W x 2 3/4"D x 1 3/8"H (20cm x 6.98cm x 3.49cm)
  • Weight: 0.52 lbs (235g)
  • Power Requirements: Receives all required power through USB connection
  • Transfer rate: Up to 360 samples per second/channel
  • Resolution: 24-bit analog to digital conversion
  • Temperature:
  • Operating: 50 to 95 degrees F (10 to 35 degrees C)
  • Storage: -40 to 115 degrees F (-40 to 46.1 degrees C)
  • Relative Humidity: 20% to 80% non-condensating
  • LX5000 Sensor Channels:
  • 1 Cardio Channel: 0 to 140 mmHg
  • 2 Pneumatic Pneumo Channels: upper and lower chest assembly with extended pressure range
  • 2 EDA Channels: GSR: 4 µA constant current, range of 10 kΩ to 2.3 MΩ; GSC: range of 5 kΩ to 4.0 MΩ; Isolation: 2 KV RMS
  • 1 PPG Channel: PPG finger clip: 0.47 second time constant, 635 nm
  • 3 Activity Sensor Channels: 0 to 4 V Analog Input

COMPUTERIZED POLYGRAPH LX4000-S

Polygraph LX4000-SW


The LX4000-S is the most popular computerized polygraph (lie detector) in the world capable of simultaneously recording changes in several physiological variables while the subject is asked a series of questions pertaining to a specific issue under investigation. The charts generated during the polygraph examination are interpreted by a polygraph examiner.

The Computerized Polygraph LX4000-S records, stores and analyzes physiological changes during a polygraph examination. This Windows-based computerized system combines conventional polygraph procedure with a sophisticated state-of-the-art computer. It offers unparalleled ease of use and proven reliability, including software that provides the examiner with capability and functionality that no one else offers. Results are derived from the following parameters: Pneumo - respiration (two channels), EDA - electrodermal activity (one GSR channel), and Cardio - blood volume/pulse rate (one channel), and Activity (seat pad) for detecting any movement by the subject (one channel).

If necessary, additional parameters can be recorded: Plethysmograph (PPG), 76604A-5L, with an adaptor, 76604ADP, to measure finger pulse and blood volume, Activity Sensor Arm Pads, 76879A, to detect movements of shoulders, forearms, and hands, Activity Sensor Feet Pads, 76879F, to detect movements of feet, toes and legs, Activity Sensor Feet Pad, 76871FS, to detect movements of feet, toes, and legs, Masseter Headphone System, 76879HM-C, to detect and record movements in the masseter muscle, USB Fingerprint Recording Device, LXSIGPRINT, for identification purposes, and USB Webcam with Focus and Microphone, LX-WEBCAM, to record a polygraph session.

COMPUTERIZED POLYGRAPH LX4000-S (BASIC PACKAGE)

  • Data Acquisition System, model LX4000
  • Activity Sensor Seat Pad (SEAT), model 76879S
  • Pneumo Chest Assembly/Stomach (P1), model 76513A-T
  • Pneumo Chest Assembly/Chest (P2), model 76513A-B
  • Disposable Ag/AgCl EDA Electrode Assembly, model 76640A-5L
  • Standard Blood Pressure Cuff (CUFF), model 76530A-5
  • Pump Bulb with Gauge (BULB), model 76506A-5
  • LX Polygraph Software, model LXSOFTWARE (latest version)
  • POLYSCORE Scoring Algorithm
  • Objective Scoring System OSS-3
  • Lafayette Drug Reference
  • Comprehensive Instruction Manual on CD-ROM
  • All Necessary Cabling, model 3-952-019, etc.
  • LX System Carrying Bag with Logo, model LX-1040S
  • 3-Year Warranty on Hardware (LX4000B)
  • 1-Year Warranty on Accessories
  • Lifetime Warranty on Activity Sensors (76879S, 76879A, 76879F, and 76879HM)
  • Lifetime Technical Support

Polygraph charts are recorded in much the same manner as conventional polygraph equipment with a smooth scrolling display moving from right to left. The tracings recorded are in real-time and are truly rectilinear, so polygraph charts can be easily interpreted. The system can be operated using a mouse/pointing device or the keyboard.

The LX4000-S works with the LX Polygraph Software (model LXSOFTWARE) - the worlds most sophisticated polygraph software. Windows-based since 1994, the LX Polygraph Software offers unparalleled ease of use and proven reliability.

Export License:

The U.S. Department of Commerce requires an export license for any polygraph system shipment with an ultimate destination other than: Albania, Australia, Belgium, Bulgaria, Canada, Croatia, Czech Republic, Denmark, Estonia, France, Germany, Greece, Hungary, Iceland, Italy, Japan, Latvia, Lithuania, Luxembourg, Netherlands, New Zealand, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Turkey, or United Kingdom. It is against U.S. Law to ship a polygraph system to any other country without an export license.If the ultimate destination is not one of the above listed countries, contact Chicago Polygraph Institute for the required license application forms.

Technical Specifications:

  • Size: 10.25" W x 3.25" D x 1.25" H (26.04cm x 8.26cm x 3.18cm)
  • Weight: 1 lb (454g)
  • Communication Interface: USB
  • Power Supply Requirements: Receives All Required Power Through USB Connection
  • Sensor Inputs:
  • (2) Pneumograph Chest Assembly, +/-80mmHG
  • Cardio Arm Cuff, 0 to 110mmHG
  • EDA, Current Applied to Skin 10A, 0 to 4VDC
  • Auxiliary Input, 0 to 4V Analog Input
  • Range: 10Kohms to 2.0Mohms
  • Isolation: 1500V RMS
  • Operating Temperature: 50F to 95F (10C to 35C)
  • Storage Temperature: -40F to 115F (-40C to 46.1C)
  • Relative Humidity: 20% to 95% non-condensating