>>45650
>E Meter
"Also in 1951, Hubbard incorporated the electropsychometer (E-meter for short), a kind of electrodermal activity meter, as an auditing aid.[69] Based on a design by Volney Mathison, the device is held by Scientologists to be a useful tool in detecting changes in a person's state of mind.[69]" --Wikipedia at https://4everland.io/ipfs/QmXoypizjW3WknFiJnKLwHCnL72vedxjQkDDP1mXWo6uco/wiki/Scientology.html