Hi, I’m using my FP2 presence sensor to trigger my office lights while I’m in there and then turn them off once I leave. The issue I am having is I have a ceiling fan above me at my desk so when the fan is on it detects “Presence” even after I leave. I have tried to mark it as a Interference Source but because it’s about my desk it then doesn’t detect me when I am sitting at my desk.
I’ve tried moving the sensor up on the wall and tilting it down but it still captures the fan. Is there a way to set the height limit?
Thanks!
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@gobigguy72 Thanks for sharing your experience! Ceiling fans can indeed be a tricky source of interference for the FP2, since the sensor is highly sensitive to moving objects within its detection zone, including things like fans, curtains, and plants. Marking the fan area as an “Interference Source” is usually the recommended approach, but as you noticed, this can lead to blind spots where you want presence detection (like your desk) .
Currently, the FP2 doesn’t offer a direct way to set a “height limit” or exclude movement only above a certain vertical threshold. The sensor’s detection area is defined horizontally (120°) and vertically (20°), and any moving object within this cone can trigger presence . Adjusting the installation position and angle, as you’ve attempted, is usually the best workaround. Sometimes mounting the sensor slightly off to the side, so the fan is at the edge or outside of the detection area, can help—but of course, this depends on your room layout.
A few additional tips:
- When setting the interference source, try to be as precise as possible, marking only the fan’s immediate area if the app allows granular selection. This can help minimize the blind spot at your desk .
- You can experiment with lowering the sensitivity of presence monitoring, which might help reduce false triggers from the fan’s movement (though it could also make detection of subtle human motion less responsive) .
- If possible, enable “AI Person Detection,” which can help the sensor better distinguish between humans and moving objects like fans or robot vacuums .
If these adjustments still don’t resolve the issue, you’re certainly not alone—balancing interference and detection zones remains a challenge in dynamic environments. If you have creative solutions or further suggestions, please continue sharing! And if you’d like to see more advanced vertical zoning or height-based filtering in the future, feel free to submit your feedback directly through customer service channels for consideration.
Let’s keep the conversation going—maybe other community members have found additional tricks that work in similar setups!