Reviewed on 10/12/2017
Note: This product was shipped to me in a bulk package. Rather than shrink wrapped and made to fit a hanging rack, these items were received in a single box, with 4 sensors and 4 batteries, without instructions. Otherwise, they seemed to be in good condition.
The product did pair and install ok, and seems to be working... and there are instructions on the irisbylowes support website as to how to pair.
I went ahead and ordered 4 more.
One star deducted for the packaging.
Working great for over a year
Reviewed on 01/03/2017
I've had these type of sensors on my two doors for over a year without any problems or battery issues.