See what your presence sensor covers before you buy
Draw your room with furniture and doors and place a sensor on a wall, in a corner or on the ceiling. The room planner shows where it detects presence, even people sitting still, where it only sees motion and what reaches out through open doors. If you like, it suggests sensors until every seat and bed and as much of the room as possible lie in the presence area, or finds the sensor for zones such as sofa and dining table. Runs in the browser, on your phone too, no sign-up. Your plan lives in the link and can be shared.
Beta: the planner uses a simplified model. How well the sensor detects only shows in your room: test the mounting spot on site, then fix the sensor and set the zones.