I have three V2 motion sensors all placed 7’ high. None of them are picking up motion in the room. Only by walking up and waving my hand a few inches from it will it trigger.
I still have some v1 motion sensors in the same rooms, but placed away from the v2 sensors. Those old v1 sensors pick up motion when I walk into the room.
I’ve tried changing the sensitivity to high and to low. I’ve waited 2 hours for it to take effect. These things aren’t detecting motion making them useless.