Professional polygraph:
Buy your own lie detector now
Professional polygraph:
Buy your own lie detector now
Professional polygraph:
Buy your own lie detector now
Delivery: In stock (July 2026)
As seen in & awards
For all types of use
No worries about infidelity
For more trust and less uncertainty in your relationship. Our polygraph helps couples to reliably clarify open questions and regain a sense of security.
No more dishonest employees
Choose the right employees. Our polygraph helps employers to reliably verify security-relevant information and personnel decisions.
Almost 100% certainty
Real clarity through our professional polygraph. When used correctly, our polygraph helps to evaluate statements on a sound basis and to expose any liar.
For beginners & professional users, modern sensors incl. polygraph software
State-of-the-art polygraph technology for more clarity and security in important decisions. Professional execution, precise measurement technology and the utmost discretion – for results you can trust.
Suitable for beginners &
pros
Polygraph
software
Compact and
portable
Easy
to use
7-fold
measurement
3D camera
facial analysis
Suitable for beginners &
pros
Polygraph
software
Compact and
portable
Easy
to use
7-fold
measurement
3D camera
facial analysis
Why our polygraph is unbeatable
Polygraph Pro
Lafayette
Stoelting
Price
3.500€
7.000-8.500€*
6.000-8.000€*
Software included
fully
extra (license)
extra (license)
3D facial recognition
yes, optional
no
no
Training on operation & setup
included
extra cost
extra cost
Spare parts and service availability
yes
yes
yes
Intuitive software
yes
moderate
average
Professional use as an examiner
yes
yes
yes
*The prices and product information listed are based on publicly available sources and are intended solely for a general comparison. Due to individual offers, equipment variants and possible price changes, the actual prices and specifications of the respective manufacturers may differ.
Our Polygraph Pro:
featured in the following media
From Joko & Klaas, BR “Das schaffst Du nie”, singer Namika, derstandard.at to Alsterradio
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Rated by customers on
Works as it was promised to me on phone! Highly appreciate your support. Enjoy your weekend and thank you. Best Wishes Jas
I didn't know that I could buy a professional lie detector in Europe without having to order it from the USA. I had researched for quite a while – and it's made in Germany. It arrived promptly. It's really worth the upgrade from my old lie detector device, which I once bought in America 20 years ago.
Can someone tell me how to install it? I called you, but I still don't understand it. Send me an e-mail at: liamdario@gmail.com.
I read an interview about an examiner who uses the polygraph from lie-detector.info, so I got interested about the product. I own a Praxis Psychological Services, PLLC since many years. Since there always has been a demand from my clients to take part in lie detector test with a polygraph, I made the decision to buy one. I was a little sceptical about the price. If you do a little research you find manufactors of polygraphs that are on the market over 20 years. The prices are at least $8.000 minimum and can easily go up to over $20.000. A real polygraph with 6 physiological sensors for $4000 only? I gave it a try! And all I can say it was perfect decision. The software is outstanding! Easy to use for novice users and with expert or advanced settings. Great invention! Superb polygraph. Thank you guys.
I bought the lie detector for my cabinet 3 weeks ago. It is as precise as my other 7k Euro equipment that I own. They even assisted me in order to set it up. I recomand it to anyone interested in having a professional lie detector.
I have bought the polygraph to measure physiological facts. The senors are good quality and the software is very sensitive. Results are awesome. Well, I can recommend it from my side. Would be interesting to have a statement from an educated examiner.
“89% accuracy in validated single tests from 38 studies with a total of 3,723 tests.”
Source: American Polygraph Association
(officially recognized polygraph association)
Order Polygraph Pro
See for yourself what our Polygraph Pro can do. Back in stock now. Shipping from the EU!
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