Sensor List by Idea Matters - List all sensors available on the device along with their current values and a plot to display their changes over time. Including accelerometer, magnetic field, orientation, light. Can be a handy tool for development or hardware testing purpose.* About the light, approximate or temperature sensor, you may find them "not updating" but that's not a problem at all. That's exactly how these sensors work on your device. There might only be very limited number of variations for the values of these sensors and they only update when the value changes dramatically (ie. from extremely bright to extremely dark). They are designed that way and there's nothing this tool can do to improve the readings of them.