Pairing/re-pairing the fabaro motion detectors is not for the weak at heart or easily frustrated.
So, after a lot of trial and error I was able to figure out the pairing pattern.
- exclude, even if new.
1a) if re-pairing remove and replace battery; green light will flash on motion detector.
- start pairing on app (classic)
- quick press button B inside below battery 3 times
- blue light will light bright then dimmer and stay on for about 30 seconds then go out
- stay in same pairing and repeat step 3 and 4 until motion detector shows up on app.
hope this helps people