Which presence sensor actually works for a home office?

PIR sensors keep turning my office lights off while I sit still and type. Has anyone found an mmWave sensor that detects a person sitting at a desk reliably and does not trigger on the ceiling fan?

Any of the 24 GHz mmWave modules work for me, as long as you tune the distance gates. Set the far gates to ignore everything beyond your desk.

I combine one mmWave and one PIR: the PIR turns lights on instantly, the mmWave keeps them on. Best of both.

Tuned the gates, no more false triggers from the fan. Thanks both.