I purchased this in January 2018 so I think that Samsung might have fixed any issues. On my SmartThings hub, this sensor works a lot better than my Bosch motion sensors and it is very efficient with the battery. I put one under the covered area on my porch in the dead of Winter in order to see how it performed. After three months, there hasn't been a single issue and the battery is still at 80 percent, which is great with all of the activity from the dog and the kids and the extended freezing temperatures (which kills batteries).It updates the temperature sometimes many dozens of times per day. I don't know how it can do all of this but only use 20 percent of the battery!