....because the percentages don't support psychic phenomena.
It really doesn't take any fancy tools at all. Really, all it takes is three people, some chairs and tables,a couple of pens, and some paper.
Get your two supposed psychics together. Have the chairs back to back. The sender sits at a table in one chair and the receiver at the other facing in opposite directions. Give the receiver some paper and a pen.
The experimenter will then prepare think of some statements and write them on separate pieces of paper without letting either of the test subjects see. The experimenter then folds the paper in half and hands it to the sender.
The sender then unfolds the paper and silently reads the statement. The sender then sends the statement telepathically to the receiver.
The receiver then receives the statement telepathically and writes it down.
The experimenter writes down whether or not the receiver's statement matches the statement given to the sender.
Repeat a few dozen times, switch sender and receiver, and do it a few dozen more times.
Send the sender and receiver home and get a new pair for a new round. Repeat the entire process. Repeat the whole shebang a few dozen times.
Anecdotes aren't evidence. Do exactly what I described above and get back to us.