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Unit Prefix Sanity Checker

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Overview

Confidence overlay for engineering values. Flags suspicious unit/prefix combinations that commonly hide 10×/1000× mistakes.

Unit Prefix Sanity Checker is a “confidence overlay” for engineering values. It scans webpages (datasheets, forums, supplier pages, documentation) and flags suspicious unit/prefix combinations that commonly hide 10× / 1000× mistakes — then suggests the most likely intended value. What it catches mF vs µF / nF (common capacitor typo) mH vs µH (small inductor mix-ups) mA vs A (signal/MCU current confusion) kHz vs MHz (timing & clock mistakes) b vs B (bits vs bytes, 8× errors) mm vs m (mechanical 1000× errors) …and more across electrical, mechanical, data, pressure, flow, and temperature units. What you get On-page highlights with an explanation of why it’s suspicious Suggested corrections and quick copy (normalized or SI format) Category presets (Electrical, Embedded, Mechanical, HVAC, Data, All) Optional PDF text analysis + findings report (when supported) Privacy No tracking, no ads, no accounts. All analysis runs locally in your browser and only your settings are stored. If you like the extension consider buying me a ko-fi! https://ko-fi.com/nickir

Details

  • Version
    1.2.1
  • Updated
    February 2, 2026
  • Offered by
    Nickirough
  • Size
    70.24KiB
  • Languages
    English (United Kingdom)
  • Developer
    Email
    clearsignaldocs@gmail.com
  • Non-trader
    This developer has not identified itself as a trader. For consumers in the European Union, please note that consumer rights do not apply to contracts between you and this developer.

Privacy

The developer has disclosed that it will not collect or use your data.

This developer declares that your data is

  • Not being sold to third parties, outside of the approved use cases
  • Not being used or transferred for purposes that are unrelated to the item's core functionality
  • Not being used or transferred to determine creditworthiness or for lending purposes

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