I just tested a new contact sensor and temperature sensor and they worked flawlessly. I am using the Nortek HUSBZB-1 USB Hub on a RPI3b+ with the OpenHab Zigbee binding on OH3.2.
Contact Sensor. Amazon.com : Zigbee Door Window Sensors XHS2-TY , XHS2-UE Home Comcast Xfinity Security MCT-350 : Electronics
Hope this helps others. I will be buying more of these.