For Sale/Wanted

Please submit polygraph items for sale to [email protected]


Looking to purchase used Lafayette LX6 Photoelectric Plethysmograph (PLE/PPG) finger sensor
Please contact Christopher DeJoseph
Syracuse Police Department
[email protected] 


New CPS Pro Elite Instrument. All brand-new sensors and comes with an extra set of Velcro electronic respiration sensors in addition to the pneumo-tubes, BP Cuff, PLE, EDA plates, palm sensors, “C” high speed connection power cable, and seat sensor with hard carrying case. This instrument ordered New with displayed equipment is $8200.  Asking 6,800 OBO

Will trade for a new Lafayette LX6 with all new sensors listed above or 6,800 cash/Zelle. If you have a Lafayette LX6 for sale, please let me know asap.

Contact David Sifling
909-997-5607 (cell)


Unique Analog Polygraph Instruments 

If you have an old instrument that is gathering dust in your garage and would like to find a good home for it rather than use it as a boat anchor, please consider donating it to The Polygraph Museum. Pack it well with lots of packing popcorn or suitable packing material, and mail it to Bendiksen & Ball Polygraph. The Polygraph Museum will re-imburse you for your packing and shipping costs. We will accept any instrument, in any condition.

We are particularly interested in:

We have also been looking for an example of a  Reid Instrument for years. And we would like early models of the Arther Polygraphs. 

In some situations, the Polygraph Museum will consider paying you for your instrument. If you are interested in selling an instrument to us contact Chris Bendiksen by phone or e-mail and discuss your instrument with him. If it is unique, in good condition, and is an instrument that we already don't have in our collection, we will make you an offer.

[email protected]