This works great. This is the cheapest smartthings compatible door sensor I have found and a lifesaver to put multiple ones in my house without spending a fortune - can get 5 for the price of 1x Samsung ones. pairs easily and directly with the Samsung hub, comes up as Ewelink door sensor. Runs locally and easily with no need for custom DTH. have now bought several.
Works great. No issues pairing with Home Assistant using a GoControl USB z-wave/zigbee stick.