So let's get into the technical side of motion sensor placement since this can really make or break your ghost hunting setup. You'll want to mount these at standard eye level which gives you two key advantages: ghosts can't avoid detection and your team can duck right under without triggering them. For maximum coverage, focus on installing 1-2 sensors directly in the suspected ghost room, keeping them visible from your camera angles for visual confirmation when they trigger.

The real strategy comes from controlling movement paths - place additional sensors at key intersections and doorways where the ghost has to pass through. Think about it like creating detection zones that funnel information back to your team. When working larger locations, you've got exactly up to 4 sensors to work with so spacing becomes critical. Set them up at major corridor junctions or doorway approaches, and always keep them within view of your video feeds for that sweet cross-confirmation when activity spikes.

One specific detail that's often overlooked is wall positioning - these need to go high enough to catch full ghost profiles but not so high that you lose clear line of sight from your cameras. The ideal setup creates a network where you can track movement patterns between rooms while filtering out teammate interference which gives you reliable intel for predicting where that ghost is headed next.