The Church of Scientology describes its electropsychometer — the E-Meter — as a religious artifact that measures the spiritual state of a human being. On the Religious Technology Center’s website, the meter is said to register ‘with precision the changes which occur in this mental mass and energy’ when a person views a mental image picture or thinks a thought.

United States Patent 8,121,676 B2, issued February 21, 2012, and assigned to the Church of Spiritual Technology, tells a different story.

What the patent describes is a signal-processing device that measures galvanic skin response — the change in electrical resistance across the skin — and then subjects that measurement to a series of computational operations before driving a needle on a display. The needle does not reflect raw measurement. It reflects a CPU-processed, gain-adjusted, interpolated representation of resistance change. The distinction matters, and Scientology has spent considerable legal effort ensuring that no one can examine the firmware that produces that display without the organization’s permission. 

This article examines four things: what the Mark VIII actually does according to its own patent; how that architecture connects to David Miscavige’s post-Lisa McPherson standardization program; why the meter sat in a warehouse for a decade before Scientologists were required to buy it — twice, per Hubbard’s own policy — at $5,000 each; and how Author Services Inc. went to the United States Copyright Office in 2023 to make it illegal for anyone to circumvent the software locks on the meter. The Copyright Office said no.

What the Patent Actually Describes

The Mark VIII’s patent was filed March 19, 2004, with a provisional application dating to March 19, 2003. The listed inventors include ‘Lafayette Ron Hubbard, Creston, CA’ — Hubbard having died in January 1986 — with Norman F. Starkey listed as his legal representative. The assignee is the Church of Spiritual Technology. The actual engineers who built the device — Richard Stinnett, Trent Lillihaugen, and John Temples — are also listed as inventors. 

The patent’s abstract is precise about what the device does: it ‘utilizes a central processing unit to digitally process sensed body resistances and drive a resistance-indicating display while compensating for the effects of component aging, component tolerances and component temperatures.’ It includes ‘an automatic calibration circuit that is automatically activated on each powering up of the device.’

Here is how that calibration works in plain language.

When the Mark VIII is powered on, it does not simply begin measuring. It first substitutes three known resistances for the body resistance — a 4.99K ohm resistor, a 12.4K ohm resistor, and a short circuit — and measures the voltage produced by each. These three data points allow the CPU to compute the effective values of the circuit’s internal resistors, compensating for manufacturing tolerances, component aging, and temperature variation. The device calibrates itself against known values before it ever touches the person being audited.

Once the three calibration points are established, the CPU calculates what measurement signal value would place the meter’s needle at SET — the target position — for every other TA (Tone Arm) position on the dial. It does this using a formula specified in the patent:

R_TA = 3 / (0.00016611111 — 0.00002555556 x TA)

The TA dial runs from approximately 0.5 to 6.5. The patent provides only three calibration reference points. For every other TA position — which is most of the dial — the device interpolates: it computes what the reading should be based on the formula and the stored calibration values, rather than measuring it directly against a known resistance.

The meter needle is therefore not showing the auditor a direct measurement of the preclear’s skin resistance at a given TA setting. It is showing the difference between the actual measured resistance and an interpolated base value calculated by firmware.

A further processing layer applies non-linear gain factors at the extremes of the TA range. When TA is above 5.5 or below 2.0 — the ranges where, as the patent notes, it is ‘much more difficult’ to keep the needle on SET — the CPU applies gain corrections that automatically adjust needle sensitivity. At high TA, sensitivity is reduced. At low TA, sensitivity is increased. The auditor does not control this. The firmware does.

The instrument that Hubbard positioned as the most sensitive detector of the human spiritual condition had become, by 2012, a managed display controlled by firmware.

The needle the auditor reads is the output of a signal chain:

1. Skin resistance sensed at the electrodes,

2. Digitized by an analog-to-digital converter,

3. Compared against an interpolated TA-position base value computed from three calibration points,

4. Multiplied by a gain factor selected automatically by the CPU based on TA range,

5. Converted back to analog by a digital-to-analog converter,

6. And used to drive a moving-coil meter electromagnetically.

What the auditor sees is the end product of that chain, not a direct reading of the person’s skin.

The RTC website states that the meter ‘measures the state or change of state of an individual.’ The patent describes a compensation model built from synthesized resistances that the device uses to normalize its display against its own internal variability. These are not the same thing.

The McPherson Connection: Standardizing the Read

The timing of the Mark VIII patent — filed 2003, issued 2012 — is not incidental. It falls squarely in the period following the death of Lisa McPherson in December 1995 and David Miscavige’s subsequent implementation of the Golden Age of Tech Phase 1.

McPherson died while in Scientology’s care at the Fort Harrison Hotel in Clearwater, Florida. She had been taken off psychiatric medication and held under Scientology’s Introspection Rundown for 17 days. Miscavige was identified in the subsequent wrongful death litigation as having personally case-supervised McPherson’s handling.

GAT 1 was Miscavige’s institutional response. It introduced new training methods, new course materials, and — critically — a new definition of the floating needle. The floating needle is the primary indicator in Scientology auditing that a charged subject has been resolved. Under the original Hubbard definition, a floating needle was characterized by a lazy, rhythmic back-and-forth movement of the meter needle. Under Miscavige’s new GAT 1 definition, the floating needle had to exhibit a specific, wider “three swing” pattern to be called by the auditor. The redefinition invalidated the training of thousands of auditors and required them to retrain and re-audit at their own expense — a substantial cash event for the organization.

The standardized meter is the hardware correlate of the standardized needle definition. If you are going to mandate a specific needle behavior and enforce it institutionally, you need a meter whose display is consistent across devices and across auditors.

The old analog meters required manual calibration and produced readings that varied based on how the auditor set up the device. The Mark VIII’s auto-calibration system eliminates that variance. Every Mark VIII, properly functioning, produces the same interpolated display for the same input conditions, regardless of which device it is or which auditor is using it.

The reads simulator — the training device that produces standardized needle patterns for auditor training — completes the logic. Auditors train on a simulator that produces standardized needle patterns. They are then certified to recognize those patterns on the Mark VIII, which produces standardized displays via firmware. The human variable — the auditor’s individual calibration judgment, the auditor’s interpretation of needle behavior — has been progressively removed from the system.

The kiosk, now deployed in Scientology organizations worldwide, takes this to its endpoint. A large-screen audiovisual unit delivers what Miscavige has designated as 100% Standard Tech without a human auditor present at all. The trajectory from McPherson to the kiosk is a straight line: a catastrophic human failure in 1995 producing a progressive mechanization of the auditing process across the following two decades.

The Warehouse VIII: A Decade in Storage on the Los Angeles River

The Mark VIII was not released to the Scientology public until 2013-2014, as part of Miscavige’s Golden Age of Tech Phase 2. It had been manufactured in Taiwan in 2002-2004. More than 20,000 units were produced and shipped to the United States, where they sat in storage at Bridge Publications’ warehouse facility for approximately a decade before a single one was sold.

Bridge Publications is located at 5600 E. Olympic Boulevard in the City of Commerce, Los Angeles County. The Los Angeles River channel runs approximately 500 feet from that address. Commerce is an industrial district; the Bridge Publications facility is a 276,000-square-foot warehouse and manufacturing complex in a flood-plain-adjacent industrial zone.

The question of what a decade of warehouse storage does to precision electronics in that environment is not trivial. The Los Angeles River corridor experiences significant humidity swings — the concrete channel creates a microclimate that pulls moisture-laden marine air inland, and Commerce sits in the industrial flatlands where summer temperatures regularly exceed 100 degrees Fahrenheit. Southern California’s summer humidity spikes, combined with the thermal cycling of a non-climate-controlled warehouse, create conditions that are systematically destructive to precision electronics.

The specific components identified in the Mark VIII patent are directly vulnerable to these conditions. Electrolytic capacitors — the large-value capacitors used in the meter’s power supply and filtering stages — have finite service lives that are strongly temperature-dependent. The Arrhenius equation that governs capacitor aging predicts that for every 10-degree Celsius increase in average storage temperature, service life is halved. Capacitors stored at 40 degrees Celsius for ten years age at twice the rate of those stored at 30 degrees. The patent itself acknowledges ‘age-related and temperature-related component changes’ as a significant design problem — the entire auto-calibration system exists to compensate for exactly this degradation.

The precision resistors in the calibration reference circuit — the 4.99K and 12.4K ohm resistors that form the foundation of the auto-calibration model — have tolerance drift characteristics that accumulate with thermal cycling. Every time the warehouse heats up and cools down, the resistance values shift incrementally. The auto-calibration system can compensate for some of this drift, but it cannot compensate for values that have drifted outside the range the compensation model was designed to handle.

The optical encoder that reads the TA knob position — described in the patent as preferred over a potentiometer specifically because it ‘lacks the life-limiting movable contacts of a potentiometer which suffer from frictional wear’ — has its own storage vulnerability: the LED and photodetector pair that reads the encoder wheel degrades with age, particularly in environments with humidity cycling.

The Mark VIII also contains an onboard real-time clock circuit. Clock chips require either a battery backup or periodic power to maintain their register. Units sitting unpowered in a warehouse for a decade would have dead or degraded clock batteries — a problem that becomes significant given the annual reauthorization system the clock chip was designed to enforce.

The practical consequence: when Miscavige finally released the Warehouse VIII to the public in 2013, the organization was selling precision electronics that had been exposed to ten years of thermal cycling in a river-adjacent industrial warehouse. The auto-calibration system the patent describes as compensating for ‘component aging, component tolerances and component temperatures’ was being asked to compensate for a decade of exactly those conditions, in units that had never been powered on.

There is a further technical consequence that the outside electronics community identified: the Mark VIII as designed included a serial port for computer connectivity. By 2013, serial ports had been obsolete for nearly a decade. Units shipped to buyers required an external USB-to-serial converter to connect to any current computer — a detail that inadvertently confirmed the meter’s 2004 manufacture date more precisely than any official Scientology communication.

The ad read ‘The future has arrived.’ The future had arrived approximately ten years earlier and been held in inventory until the revenue conditions were optimal.

The original design brief for the Mark VIII, according to former Sea Org members involved in the project, specified a retail price under $1,000, internet software updates like an iPod, and ultra-light electrodes designed to prevent false TA readings caused by hand perspiration. The meter that shipped in 2013 cost $5,000, required logging into the RTC website for annual reauthorization, and was sold with standard metal electrode cans. Every feature that would have made the meter more accessible and less revenue-dependent had been removed or reversed.

You Will Buy Two: The Hubbard Redundancy Mandate

The $5,000 price for a single Mark VIII is not the complete acquisition cost for the Scientologists who are required to own one.

1. Ron Hubbard mandated that Scientologists who require an E-Meter own two. The rationale, stated in Hubbard’s policy, is that a meter failure during an auditing session must not interrupt case progress — a backup unit ensures continuity. The redundancy requirement is not a suggestion. It is policy, and it applies to the Mark VIII as it applied to every previous meter generation.

The Scientologists who are actually required to own meters are a specific subset of the membership. Solo NOTs — New Era Dianetics for OTs — is the upper-level auditing procedure in which the Scientologist audits their own body thetans daily without a separate auditor present.

Solo NOTs participants audit themselves, typically for one to two hours each day, using their own E-Meter. This is not optional. Solo NOTs is a mandatory daily practice for anyone on that level, and it requires a functioning meter. Interruption of Solo NOTs without proper handling is treated as a serious ethics matter.

The cost structure for a Solo NOTs participant acquiring Mark VIII meters under Miscavige’s GAT 2 release: two meters at $5,000 each, plus the optional Troubleshooter accessory at $500, plus the Solo Auditor Case at $350. The baseline acquisition cost for compliance with Hubbard’s redundancy mandate, before accessories, is $10,000.

The annual reauthorization requirement then converts that $10,000 capital purchase into an ongoing subscription with an ethics-check component. To this cost is added to the two mandatory yearly trips to Flag Land Base that OT’s must make for sec checks which are called “refreshers.”

Both e-meters require annual reauthorization through the RTC website. Both reauthorizations require a current IAS membership. Both reauthorizations are contingent on the owner’s ethics status. A Solo NOTs participant who falls into ethics trouble does not merely face internal disciplinary procedures — their meters stop working at the end of the clock cycle, interrupting the mandatory daily practice that their level requires.

Mike Rinder’s blog commenters identified this architecture with precision: ‘The Silver Cert became an IAS membership — they just switched the object of certification: before it was implied that the meter can go bad and needs regular checkups, now it is implied that the owner can go bad and needs regular checkups.’

The Kill Switch

The Mark VIII contains a real-time clock chip set to one year. When the year expires, the meter stops functioning. To restore it, the owner must log onto the RTC website and register the device. The RTC system then checks the owner’s ethics status and IAS membership, and if the owner passes, the meter is reauthorized for another year.

This is, precisely and without metaphor, a digital rights management kill switch built into a device that Scientology calls a religious artifact. The architecture is identical to a software subscription: the purchaser does not own the functionality, only a license to access it, renewable annually on the licensor’s terms.

The 2013 Software License Agreement and Purchase Agreement and Covenant of Religious Use confirms the terms. The e-meter’s software is licensed, not sold. The EULA requires an International Association of Scientologists membership number to register or update the device. The warranty is voided if the meter casing has been opened or if the software has been used improperly or in an operating environment not approved by CSI.

The IAS membership requirement embedded in the software update process means that a lapsed IAS member cannot update their meter’s firmware. For a Solo NOTs participant, whose daily auditing practice requires a functioning meter, the IAS membership fee is no longer a voluntary donation to an independent association. It is a prerequisite for the hardware their practice depends on.

Author Services Goes to the Copyright Office

In August 2023, Ryland Hawkins, identified as the legal affairs head of Author Services, Inc., filed a letter with the United States Copyright Office opposing renewal of an exemption to Section 1201 of the Digital Millennium Copyright Act.

Author Services, Inc. is the for-profit literary agency that manages the commercial exploitation of L. Ron Hubbard’s fiction catalog.  Author Services is owned by the Church of Spiritual Technology — the same entity that holds the Mark VIII e-meter patent.

The exemption ASI opposed — 37 C.F.R. 201.40(b)(14) — makes it legal for consumers to circumvent software locks in devices they own for the purpose of diagnosis, maintenance, or repair. This is the exemption that allows farmers to repair their John Deere tractors without manufacturer authorization and consumers to repair their own electronics.

ASI’s letter never mentioned the E-Meter by name. It argued that the exemption should not apply to devices that ‘can only be purchased and used by someone who possess particular qualifications or has been specifically trained in the use of the device’ and whose software is ‘governed by a license agreement negotiated and executed prior to purchase.’ The description matches the Mark VIII’s purchase and licensing structure precisely.

The consumer rights community noticed immediately. Meredith Rose, DMCA expert and senior policy counsel at Public Knowledge, called ASI ‘by far the strangest party I’ve ever seen file with the Copyright Office.’ Elizabeth Chamberlain, director of sustainability at iFixit, offered the most direct assessment: ‘My hunch is that the Scientologists think granting the hacking community permission to dig into their E-Meter software will expose the whole operation as snake oil.’

That assessment deserves to be taken seriously on its technical merits. Independent examination of the Mark VIII’s firmware would reveal, among other things, how the interpolation formula is implemented, what tolerances the auto-calibration system accepts, how the annual clock is managed, and what the reauthorization protocol actually communicates to the RTC server. These are not questions that the organization has an interest in having answered publicly.

The Copyright Office was not persuaded. In October 2024, the Librarian of Congress issued a final rule renewing the existing right-to-repair exemptions. ASI’s proposed carve-out was not adopted. The right-to-repair exemption covering the Mark VIII remains in effect until October 2027.

Author Services Inc. — a for-profit literary agency owned by the Church of Spiritual Technology — went to the United States Copyright Office to protect the kill switch on a device Scientology calls a religious artifact. The Copyright Office said no.

The Structural Contradiction

The ASI letter to the Copyright Office crystallizes a contradiction that runs through the entire e-meter architecture.

On the RTC website, the E-Meter is described as a religious artifact that measures mental mass and energy — a spiritual instrument central to Scientology’s auditing practice. This is the framing Scientology uses when it needs First Amendment protection: the meter is sacred, its use is ministerial, its readings are matters of religious practice not subject to secular scrutiny.

In the Copyright Office filing, the meter is a proprietary commercial device sold under a negotiated pre-purchase license to specially trained users, whose software is a copyrightable work entitled to DMCA protection. This is the framing Scientology used when it needed federal copyright law to protect its annual reauthorization system.

Both framings cannot be simultaneously true in the same legal system. A religious artifact used in the free exercise of religion occupies a different legal category than a licensed commercial device sold under a pre-purchase covenant. ASI invoked the commercial framing before the Copyright Office while RTC maintains the religious framing on its website. The organization uses whichever characterization serves the immediate institutional purpose.

What is not in dispute is what the device actually does. United States Patent 8,121,676 B2 describes a system that measures electrical resistance, subjects that measurement to a computational model built from synthesized calibration resistances, applies non-linear gain corrections, and drives a display needle with the result. The patent makes 24 claims about this process. None of them involve mental mass, mental image pictures, body thetans, or the spiritual state of a living being.

The meter measures skin resistance. The firmware manages the display. The annual clock enforces compliance. Ten years of warehouse storage on the Los Angeles River degraded the components the auto-calibration system was designed to compensate for. And when Author Services went to the Copyright Office to protect the system that controls all of it, the Copyright Office declined.

Sources

United States Patent 8,121,676 B2, ‘System for Measuring and Indicating Changes in the Resistance of a Living Body,’ issued February 21, 2012, Church of Spiritual Technology (assignee).

Author Services, Inc. letter to U.S. Copyright Office, Docket No. 2023-5, August 10, 2023, signed by Ryland Hawkins.

U.S. Copyright Office, Ninth Triennial Section 1201 Proceeding, Final Rule effective October 28, 2024.

Mike Rinder’s Blog, ‘Mark VIII Ultra E-Meter — 9 Years in Storage,’ mikerindersblog.org.

Mike Rinder’s Blog, ‘The Warehouse VIII,’ mikerindersblog.org.

Mike Rinder’s Blog, ‘The Warehouse VIII Suitcase Bomb,‘ mikerindersblog.org.

Mike Rinder’s Blog, ‘The Secret E-Meter,’ including the 2013 Software License Agreement and Purchase Agreement and Covenant of Religious Use for the Hubbard Professional Mark Ultra VIII E-Meter.

404 Media, ‘Scientologists Ask Federal Government to Restrict Right to Repair,’ September 2023.

Gizmodo, ‘Scientologists Tell Feds They Don’t Want Randos Repairing Their E-Meters,’ August 31, 2023.

The Register, ‘Right to Repair’s Most Unlikely Opponents: Scientologists,’ September 1, 2023.

Hackaday, ‘What’s Inside a Scientology E-Meter?’ July 2018.

Scientolipedia, ‘Scientology Meters,’ scientolipedia.org.

Religious Technology Center website, ‘The E-Meter,’ rtc.org.

Jeffrey Augustine, ‘Scientology’s Message to the World: Keep Your Filthy Degraded Wog Hands Off Our $5,000 E-Meters,‘ The Scientology Money Project, August 31, 2023.z

Copyright 2026 Jeffrey Augustine

The Ultra Mark VIII patent: