Hi, the luminance sensor is very direction-sensitive. The hole that lets the light in is small. So if you want to use the data in a sensible way, you need to adjust the direction to avoid direct sunlight, reflections, moonlight etc. The luminance sensor is located right to the camera, or left. For this reason, we didn’t show the data in the app, it’s more a reference. Don’t forget that the camera, LUX and UV sensors as whole is adjustable. You can move it up and down. @Benji