How do I install the motion sensor? Lauren Dickinson 20 June 2019 12:19 Updated Here's Louise demonstrating how to install the motion sensor: Related articles Once the sensors have been installed, can they be moved again or are they fixed in place ? Why are my sensors are showing as inactive? Where do the batteries fit and what size are they? How do I install the door sensor? How do I discuss Howz with someone I am concerned about? Comments 0 comments Please sign in to leave a comment.