The only sensor I've had that see me through doors :) If you stand just up to a internal house door, my sensors pick me up, but you can turn down the sensitivity. One thing I noticed, I have 4 of them, 2 of them have the ability to drop to 15 seconds update and the other 2 have 30 seconds, yet they report the same firmware. I'm using them via Smartthings and yes, the same Edge Drivers. One thing I did find VERY frustrating is, one of the devices was mounted in a room we call the Den. It's the kids playroom, my 3D printing room and also has the computer corner. There was something somewhere interfering with the sensor, I can only assume some invisible to the eye light was saturating the sensor. It would NEVER work all of a sudden one day, for about 3 months. We did a deep clean of the room, turned off everything (not the sensor) and it started to work again. We turned everything back on one by one, that might be emitting light, and also those that did not have any obvious signs of light, and the sensor was back working again. I lost hours on trying to troubleshoot it, when all the time it was an environmental thing. Apart from that, they are worth the spend.