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Ambient Light Tester

Test your device's ambient light sensor with live analog meter. Measure illuminance in lux, track brightness levels, and monitor light conditions in real-time.

Idle
Light Meter Light level meter
--
0
lux
Max
Maximum
0 lux
Min
Minimum
0 lux
Avg
Average
0 lux
History Light history chart
Guide Light level reference guide
0-10 luxVery Dark
10-50 luxDark
50-200 luxDim
200-500 luxNormal Indoor
500-1000 luxBright
1000+ luxVery Bright / Daylight

About Ambient Light Tester

Test your device's ambient light sensor with a beautiful analog meter display. Measure illuminance in lux units, track minimum, maximum, and average values, and monitor light level changes over time with a live history chart. Perfect for testing automatic brightness adjustment, photography lighting, or understanding ambient light conditions.

  1. Press Start measuring to activate the ambient light sensor.
  2. Watch the analog meter needle move as light levels change around you.
  3. Observe the color-coded condition badge showing current brightness level.
  4. Track the history chart to see light level fluctuations over time.
  5. View statistics showing maximum, minimum, and average lux values.
  6. Use the reference guide to understand different lighting conditions.
  7. Press Reset to clear all statistics and start fresh measurements.
See also
SENSORS
WUTOOLS