Needing cheap contact sensor (2020)

[hatallica]

My house had 2 XHS2-SE sensors when I bought it. After pairing them to ST, I went ahead and added a few more - under $10 on eBay. There are a pile of them in the market. Reports battery and temperature as a bonus.

Xfinity Door/Windows Sensor work with Smartthings (XHS2-SE)

Confirming that I just added XHS2-SE with V3 Hub and new app. It originally added as a Thing. In the IDE, changed Type = Tyco Window/Door Sensor. All is good. Shows open/closed, battery, and temperature. Read all of @JENP post before starting. The first time, I help the tamper switch too long because I was still reading about releasing it during the 4 seconds that the LED is illuminated.