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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 LX5000-SW
  • Computerized Polygraph LX4000-SW

COMPUTERIZED POLYGRAPH LX5000-SW

The world's most advanced polygraph (lie detector)

Polygraph LX5000-SW

The Computerized Polygraph LX5000-SW 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-SW 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-SW 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-SW 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), PPG - photo plethysmograph for measuring finger pulse and blood volume (one channel), and Activity Sensor (seat pad) for detecting any movement by the subject (1 channel).

The LX5000-SW polygraph can record additional parameters utilizing the following accessories: 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-SW (BASIC PACKAGE)

  • Data Acquisition System, model LX5000
  • Photo Plethysmograph (PPG), model 76604A-5L
  • 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 100 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-SW 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 ?A constant current, range of 10 k? to 2.3 M?; GSC: range of 5 k? to 4.0 M?; 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-SW

The world's most popular polygraph (lie detector)

Polygraph LX4000-SW

The LX4000-SW 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-SW 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 traditional parameters: Pneumo - respiration (two channels), EDA - electrodermal activity (one GSR channel), and Cardio - blood volume/pulse rate (one channel).

If necessary, additional parameters can be recorded: Plethysmograph, 76604USA, to measure finger pulse and blood volume, Activity Sensor Pad, 76879S, to detect any movement by the subject, 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-SW (BASIC PACKAGE)

  • Data Acquisition System, model LX4000B
  • 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-SW 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