i just paired three of these and did not figure it out until the 3rd one…
The instructions quoted below worked for me (posted a few pages up)… Less is more… I too was pressing the heck out of the thing for 30min…
I would sure love to get the battery working at some point as with a device like this it would be unfortunate to find out battery was dead after you have a leak…
chippie /MARK
No holding the button!just press/release it, wait a few seconds for the LED to flash back, keep repeating until it shows in the app. As you get close the LED will flash 3 times then again 3 times after a second or two. Just continue to single press the button and wait a few seconds for the LED to respond. The hub will pick it up.
You can reset the sensor by holding the button for several seconds until the LED stops flashing, then release, you should get a single flash after that press and hold the button again and the LED should flash quickly for a few seconds, wait for it to finish then release the button. The Sensor should be full reset now. Try to pair it again…