Lux Meter is a utility application designed for Android devices that enables users to measure ambient illuminance in lux or foot-candle using their device's light sensor. This simple yet effective tool allows users to check and compare the intensity of various light sources, making it ideal for both casual users and professionals who need precise light measurements. The app features a recording function that can log illuminance data for up to 16 hours and 39 minutes, allowing for detailed analysis of light conditions over time.

The application offers a range of functionalities including adjustable sensor sensitivity, calibration options for accuracy, and the ability to visualize data with minimum and maximum values along with average value diagrams. Users can also customize the layout color and move the application to an SD card for convenience. The recorded data can be saved or exported via email, enhancing its usability for those who require documentation of their findings.