For those Android smart-phones that have various sensors built-in, this app attempt to access and retrieve values for display. Three common sensors are shown. Light, Temperature, 3-axis Magnetic field.Use case for such app is to help some users whose line of work include the need to check for light lumen, temperature or magnetic field of the surrounding environment.Make use of the 15 minutes trial to determine if your Android smart-phones come with those sensors built-in. The value will appear and updated periodically once you tap Start for each sensor. Tap Stop to stop the sensor.The application support English, Simplified Chinese, Traditional Chinese display.