emeters

An e-meter, short for electropsychometer, is a handheld device used in Scientology auditing. It consists of a control unit and two metal cans held by the person being audited. The device passes a small electrical current between the cans and measures changes in the electrical resistance of the skin. Practitioners interpret fluctuations on the meter’s indicator as signs of the subject’s mental or spiritual state, using these readings to guide questions and discussions during auditing.

The e-meter was developed in the mid-20th century and is closely associated with L. Ron Hubbard, the founder of Scientology. Modern versions are marketed for use within Scientology services and are presented as tools to help reveal areas of distress. They are not designed as medical or diagnostic instruments by secular standards.

In the scientific community, e-meters are controversial and not supported by credible evidence. Readings are generally understood to reflect galvanic skin response, which can be influenced by many factors such as stress, temperature, or movement, rather than any spiritual condition. The interpretive claims made by Scientology practitioners have not been validated by independent research. Regulatory status varies by country, but authorities typically do not recognize e-meters as medical devices, and some jurisdictions have scrutinized their marketing when presented outside religious contexts.

Within Scientology, the e-meter is regarded as a practical aid for auditing, intended to accompany questioning and self-exposure. Critics view it as a ritual instrument whose readings lack scientific substantiation.