Polygraph instrumentation, commonly referred to as lie detectors, varies significantly in price depending on factors such as the type of device, features included, and the vendor. Basic models for personal use can start in the hundreds of dollars, while professional-grade computer polygraphs used in law enforcement and forensic settings can range from several thousand to tens of thousands of dollars. Software, accessories, and training represent additional costs that should be considered.
The potential to ascertain truthfulness has made polygraph technology a subject of considerable interest and controversy for decades. From pre-employment screenings and criminal investigations to security clearances and relationship counseling, these devices have been employed across diverse sectors. While their accuracy remains debated, the demand for truth verification tools persists, driving development and refinement of the technology. Understanding the pricing landscape associated with this technology is essential for informed procurement decisions.
