Polygraph Manufacturer, Suppliers and Exporter in India
Jlabexport is a leading Polygraph Manufacturer,and suppliers in India, United States, Indonesia, Brazil, Bangladesh, Mexico, Japan, Egypt, Philippines, Democratic Republic of the Congo, Vietnam, Iran, Turkey, Tanzania, United Kingdom, France, South Africa, Italy, Kenya, Colombia, Sudan, Uganda, South Korea, Argentina, Afghanistan, Yemen, Angola, Morocco, Poland, Uzbekistan, Mozambique, Malaysia, Ghana, Saudi Arabia, Peru, Madagascar, Côte d’Ivoire, Cameroon, Niger, Venezuela, Australia, Syria, Mali, Burkina Faso, Sri Lanka, Malawi, Zambia, Chad, Kazakhstan, Somalia, Chile, Senegal, Ecuador, Cambodia, Zimbabwe, Guinea, Benin, Rwanda, Burundi, Bolivia, South Sudan, Tunisia, Haiti, Belgium, Dominican Republic, Jordan, United Arab Emirates, Honduras, Tajikistan, Papua New Guinea, Portugal, Togo, Sierra Leone, Belarus, Laos, Turkmenistan, Libya, Kyrgyzstan, Nicaragua, Paraguay, Bulgaria, Serbia, Republic of the Congo, Lebanon, Liberia, Central African Republic, Palestine, Oman, Mauritania, New Zealand, Costa Rica, Kuwait, Panama, Croatia, Georgia, Eritrea, Mongolia, Uruguay, Qatar, Namibia, Bosnia and Herzegovina, Moldova, Armenia, Gambia, Jamaica, Lithuania, Albania, Gabon, Botswana, Lesotho, Guinea-Bissau, Slovenia, Equatorial Guinea, Latvia, North Macedonia, Bahrain, Trinidad and Tobago, Timor-Leste, Cyprus, Estonia, Eswatini, Mauritius, Djibouti, Fiji, Comoros, Solomon Islands, Guyana, Bhutan, Luxembourg, Suriname, Montenegro, Malta, Maldives, Cabo Verde, Brunei, Belize, Bahamas, Iceland, Vanuatu, Barbados, São Tomé and Príncipe, Samoa, Saint Lucia, Kiribati, Seychelles, Grenada, Saint Vincent and the Grenadines, Antigua and Barbuda.
Last updated: 24 October 2026
Quick Answer
The Polygraph is an ink-writing chart recorder for psychology and physiology laboratories that writes several physiological signals side by side on one moving chart, so changes in each can be compared at the same instant. It has modular pen motors exchanged in a minute or two, 120 mm pens with a 70 Hz frequency response at -3 dB, and a silent chart drive for Z-fold paper. JLab lists 1 recorder here.
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Explore the Polygraph Range
| Range | Items | What it covers |
|---|---|---|
| Ink-Writing Polygraph | 1 | An ink-writing chart recorder with modular pen motors, 120 mm pens, a backlash-free chart drive for Z-fold paper and an optional time and event channel. |
Polygraph Specifications
The table gives the pen motors, pen length, frequency response and chart drive stated on the recorder's own page.
Ink-Writing Polygraph (1)
| Product | Specification |
|---|---|
| Polygraph | Pen motors: Modular, easily interchangeable in a minute or two; Pen length: 120 mm, ink-writing system; Frequency response: 70 Hz at -3 dB with 120 mm ink pens; appreciably higher with shorter 75 or 80 mm pens; Chart drive: Silent gear train with an imported synchronous motor, free from backlash. |
Related Equipment in Other JLab Ranges
Other JLab ranges list the Student Physiograph, which comes with a defined set of transducers and couplers, the Bicycle Ergograph and a hand grip dynamometer.
| Product | Range |
|---|---|
| Student Physiograph | Student Physiograph |
| Bicycle Ergograph | Bicycle Ergograph |
| Hand Grip Dynamometer | Hand Grip Dynamometer |
Who Buys This Range
Psychology departments running practicals on emotion, arousal and stress responses, and physiology labs that record several signals side by side, using an ink-writing polygraph whose pen motors can be exchanged to suit each practical.
Frequently Asked Questions
What does a polygraph record?
A polygraph writes several physiological signals side by side on one moving chart, so that changes in each can be compared at the same instant. In psychology departments it is used for practicals on emotion, arousal and stress responses.
What frequency response do the Polygraph pens give?
With the 120 mm ink-writing pens the frequency response is 70 Hz at -3 dB, and it is appreciably higher with shorter 75 or 80 mm pens.
Request a Quote
Send the number of Polygraph recorders you need, and whether you want the optional time and event channel, through the contact page.
Polygraph
Product Code : EL-P-2379
Polygraph with modular pen motors that change in a minute or two, 120 mm ink-writing pens, a silent backlash-free chart drive and Z-fold chart paper, by JLab.
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