“Good product! My only regret is that it does not include an acceleration sensor (3-axis accelerometer, gyroscope or any kind of vibration sensor) for door knocker detection, unlike the Aeotec/Samsung SmartThings Multipurpose Door Sensor.”
“I added this to my front door (in addition to the alarm mag sensor) so that I could get a quicker reaction through my hub and operate lighting. I was delighted to see how small and unobtrusive it is - there are some huge sensor kits on the market and I didn't want something big. It looks really good. Paired first time with my Hubitat Elevation hub, and works a dream.”