Free application to measure the amount of light (in lux) reaching the ambient light sensor. The ambient light sensors measure light in lux a measure of illumination that depends on the amount of incoming light and the area over which it is spread.
Easy and simple. Measure the amount of light and share all results.

The Photometer PRO is a non-profit with a bold vision: Provide free and open access to light measurements and knowledge to everyone around the world. The best way to achieve our mission is to operate without ads or paywalls. For this reason the Photometer PRO is funded by donations. Your donations keep Photometer PRO freely available and accessible to all.

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