Professional Polygraph Machine with 5 Sensors – Advanced Lie Detection System, Made by Israeli Experts

BioSignals Professional Polygraph System is a high-precision, multi-sensor polygraph machine designed for forensic examinations, credibility assessments, and advanced psychophysiological analysis. The system is engineered using cutting-edge hardware and signal-processing technology to capture, analyze, and interpret involuntary physiological responses associated with stress, fear, deception, and cognitive load.

Housed in a durable professional plastic enclosure, the BioSignals Polygraph Machine acquires and decodes real-time physiological data from five synchronized sensors, transmitting high-resolution data at 2400 bytes per second. Embedded firmware ensures stable, loss-free transmission to a Windows PC or mobile device for immediate analysis and recording.

The system connects effortlessly via Bluetooth (BLE) or USB/OTG, allowing rapid setup in field or laboratory environments. Each unit includes a unique serial number for authentication and anti-counterfeit protection. Initial device activation and calibration are performed on a Windows PC to ensure forensic-grade accuracy.

Polygraph Sensors & Measured Channels

Blood Volume Pulse (BVP)
Measures peripheral blood volume changes in the finger, a core polygraph indicator of emotional arousal, fear response, and sympathetic nervous system activation.

Heart Rate (HR) & Inter-Beat Interval (IBI)
Tracks cardiac acceleration, deceleration, and rhythm instability—key markers used in deception detection and stress response analysis.

Dynamic Blood Pressure Changes
Detects subtle, rapid blood pressure fluctuations associated with cognitive stress, threat perception, and deception-related autonomic activation.

Heart Rate Variability (HRV)
Provides deep psychophysiological insight into autonomic balance and stress regulation. The system calculates over 40 HRV indicators, including:

• Cognitive load and rumination patterns (VLF)

• Stress and arousal activation (HF)

• Adaptive regulation and relaxation response (LF)

• Calmness and control ratio (LF/HF)

Galvanic Skin Response (GSR / EDA)
High-resolution electrodermal activity measurement using finger electrodes. A primary polygraph channel reflecting sympathetic nervous system activation during emotional or deceptive responses.

Peripheral Skin Temperature
Measures minute temperature changes (0.01°C resolution), indicating vasoconstriction and autonomic stress reactions commonly observed during deception.

Abdominal Breathing Sensor
Highly sensitive stretch sensor monitoring respiration depth, rhythm, and suppression—one of the classic polygraph channels for detecting controlled or altered breathing patterns.

Chest Breathing Sensor
Highly sensitive stretch sensor monitoring respiration depth, rhythm, and suppression—one of the classic polygraph channels for detecting controlled or altered breathing patterns.

PC Polygraph Software Capabilities

• Conduct full professional polygraph examinations, including structured question sequences (relevant, control, and neutral questions)

• Real-time visualization of all physiological channels on a synchronized timeline

• Advanced signal filtering and environmental noise compensation

• Automatic marking of questions and events during the test

• Recording and secure storage of raw physiological data for forensic review

• Export of all signals and analysis to CSV format for independent expert evaluation

• Examiner-friendly interface optimized for investigative and clinical workflows

Mobile App (Android & iPhone)

• Connects via USB, BLE, or OTG

• Uses the mobile device as both power source and live display

• Real-time monitoring of all polygraph channels

• Cloud-based data storage and report synchronization

• Ideal for portable, field-based polygraph testing

Package Includes

• 1 × BioSignals Professional Polygraph Device (plastic enclosure)

• 1 × PPG / BVP heart rate & dynamic blood pressure sensor

• 1 × GSR electrode cable with Velcro finger straps

• 1 × Abdominal respiration stretch sensor

• 1 × Chest respiration stretch sensor

• 1 × High-resolution temperature sensor

• 1 × USB OTG cable

• 1 × Windows PC Polygraph Software

• 1 × Android / iOS Polygraph App

• 1 × Raw Signal Recording & Analysis Software

Professional-Grade Polygraph Solution

The BioSignals Professional Polygraph Machine delivers laboratory-level accuracy in a compact, portable system. Designed for investigators, forensic examiners, clinicians, and security professionals, it provides a complete, reliable platform for lie detection, credibility assessment, and psychophysiological investigation—in both clinical and field environments.