Professional Lux Meter App for the United States

Trusted by 1486+ electricians and safety professionals across the U.S. Complete lighting measurement and emergency lighting testing with instant PDF reporting.

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Tests Completed

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App Rating

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Why U.S. Professionals Choose Lux Meter Pro

The most comprehensive lighting measurement app for U.S. practice: lux & foot‑candle readings, emergency lighting tester, and clear audit reports.

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Accurate lux & foot‑candle readings

Professional‑grade lux and foot‑candle (fc) measurements using advanced iPhone sensors. Ideal for level verification and compliance documentation workflows.

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Emergency lighting testing

Complete test procedures with rest periods and detailed logs — perfect for rounds, preventive maintenance, and safety audits.

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Instant PDF reports

Create clear PDF reports with timestamps, lux/fc readings, notes, and useful details for your compliance records.

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Compliance documentation

Ready‑to‑use templates that help document emergency lighting tests and lighting measurements according to your internal policies and project requirements.

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Periodic testing

Smart scheduling and automatic reminders for recurring tests so you never miss important deadlines.

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Professional support

Dedicated support for U.S. teams: best practices for lux/fc readings, emergency lighting testing methods, and usage guidance.

Lux & Foot‑Candle (fc) Readings: how to measure and interpret

Master lighting measurement with a lux meter: where to measure, how to interpret lux/fc values, and typical target levels.

Good measurement practices

  • Keep the phone steady and avoid covering the sensor with your hand.
  • Measure at the task plane: desktop, corridor floor, reading plane, etc.
  • Take multiple readings and use the average to reduce variability.
  • Record context: time, light sources, distance, ambient conditions.

Common reference ranges

  • Offices and work areas: ~300–500 lx (≈28–47 fc) depending on task.
  • Corridors and passageways: ~100–200 lx (≈9–19 fc).
  • Stairways: ~150–200 lx (≈14–19 fc).
  • Egress paths (emergency lighting): prioritize continuity and uniformity; verify project‑specific requirements.

Quick conversion

  • 1 foot‑candle (fc) = 10.764 lux (lx)
  • lx = fc × 10.764 • fc = lx ÷ 10.764

Note: Values above are indicative references. Always follow your internal guidelines, project specifications, and applicable standards.

Emergency lighting essentials (U.S.)

General pointers to support field checks and documentation workflows

  • Confirm clear, illuminated egress routes and exit signage; emphasize continuous, uniform illumination along paths.
  • Check emergency units (luminaires/batteries), lens cleanliness, charging indicators, and keep paths free of obstructions.
  • Perform scheduled short/long duration tests; capture results with notes and photos in PDF reports.
  • For many projects, teams reference egress illumination concepts seen in common U.S. codes/standards; verify your site‑specific requirements before use.
  • Track corrective actions and repair dates; use app schedules and reminders to manage retests and follow‑ups.

Reminder: Code requirements vary by jurisdiction and project. Use this app to document findings; confirm acceptance criteria with your AHJ and project specifications.

Simple, transparent pricing for the U.S.

One app, all features, no hidden fees

Lux Meter Pro

$9.99

One-time purchase

  • ✓ Unlimited measurements
  • ✓ Emergency lighting testing
  • ✓ PDF report generation
  • ✓ Compliance documentation templates
  • ✓ Periodic testing schedules
  • ✓ Free updates forever
  • ✓ Professional support
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Serving the entire United States

From major metros to remote sites, Lux Meter Pro is the trusted choice nationwide.

United States coverage

Lux Meter Pro is optimized for use throughout the U.S. and widely used by electricians, facility managers, safety inspectors, and maintenance teams for day‑to‑day tasks.

Whether you’re in the capital or remote regions, Lux Meter Pro delivers accurate lux/fc readings and reliable emergency lighting test tools to simplify controls and reporting.

FAQ — Lux meter and emergency lighting

Is an iPhone reliable as a lux meter?

Yes for operational and comparative use. For critical checks, take multiple readings, calibrate if needed, and document measurement context in the PDF reports.

Can I test emergency lighting with the app?

Yes. Use the built‑in protocols to run tests, track rest periods, and record results, with PDF export for your documentation.

What lux/fc levels should I target?

Depends on zone and task: corridors ~100–200 lx (≈9–19 fc), stairs ~150–200 lx (≈14–19 fc), offices ~300–500 lx (≈28–47 fc); for egress routes, emphasize continuous, uniform illumination. Follow your internal guidelines and project specs.

Join 1486+ U.S. professionals

Download Lux Meter Pro and turn your iPhone into a professional lux meter for lighting measurements.

📱 Download on the App Store

Available exclusively on iOS • Works nationwide