This is a quick utility to test/check your proximity sensor. Test if your proximity sensor is broken, or if you have a proximity sensor. For example, you could use it to test if your screen protector is blocking your proximity sensor. There are 2 types of tests: Basic test: Test the basic functionality of the proximity sensor. Is it working or not? Distance test: Get the exact distance value your proximity sensor senses. Please note that only a small amount of smartphones are able to do this!