Zwave Door Sensor Aeotec Recessed Door Sensor 7, Z-Wave Plus Enabled Smart Door Sensor Battery Powered, SmartStart S2, Zwave Hub Required SmartThings Fibaro Home Centre 3 Hubitat

Works great with Smartthings V3 but you need to pair the sensor in a specific way as of 12/14/20. If you follow the instructions in the package or use Steven’s review it will not work correctly and the sensor will show closed when the door is open.To pair, first remove the lid and take the microchip/battery out of the plastic tube by squeezing the tube and pulling out the chip. Remove the plastic battery tab and then pull the battery completely out. Replace the battery and you will see the red light flash, which will eventually turn off. If there is no red light, twist the battery in place as this may clear any debri that was preventing the battery contact to the chip. Keep the chip out of the tube for now.Next step is to load the new Smartthings app and then hit the + button on the top right. Hit Device, then Aeotec brand, then Open/Closed Sensor, then Door/Window 7 Sensor, then Start, then Next in the hub/room screen. Hit the button several times until the red light starts flashing and the pairing hits 100%. The next window will ask you to scan a QR Code BUT HIT THE X ON THE TOP RIGHT TO EXIT THIS SCREEN!! Do not scan the QR Code or enter a code or your sensor will NOT work correctly. After hitting the X you will get a Exiting Secure Set-Up Message. Then you will get a warning that you are not using the highest security but ignore this warning by hitting OK and then rename the device and hit Done.Now the final step is to immediately remove the battery, wait 10 seconds and then replace it. Wait for the red light to turn off. Move the magnet piece over the top of the chip and you should see a successful open/closed indication on Smarthings. If it doesn’t work, take the battery out again, wait 10 sec and then replace it. Eventually it will start to work perfectly and you won’t have to touch it again. Place the chip back in the tube, replace the lid and install in your door/window.I just installed 8 sensors in most of our doors and windows and all of them work great after following this method. For some reason this sensor only works with the lower Smartthings security, but as an open/closed sensor this was not an issue for me. If Aeotec or Smartthings updates their software and this method no longer works, I will update my review. I hope this helps!

Update 11/2020: Two of these have failed. The battery went dead in both of them. When I replaced the battery, they became so hot that I could not hold them. The battery got hot as well. Something in the circuitry has shorted out. Very disappointed.I purchased several of these G7 versions because I had a previous generation sensor and was happy with it. I almost returned them because they would all pair, but wouldn't work - the status would change once and then stay stuck. The problem is the S2 security. If you pair them using the instructions, or by using the app and selecting the "Recessed Door Sensor Gen 5/7" device, you will be prompted to scan the QR code on the box. This will set the device to use S2 security which will pair, but FAIL to work correctly, at least it did on my SmartThings Hub V3 running Firmware Version 000.029.00008.Solution:You have to force the sensor to connect using the unsecured protocol!Note: If you already paired the sensor using the S2 security (i.e. you scanned the box QR code), you must delete it from the Hub before adding it unsecured.To delete it:1. Click the sensor's icon in the SmartThings app2. Click on the vertical dots (...) in the upper right-hand corner and then select "Edit"3. Click "Delete device" and then "Delete" on the confirmation popup4. Quickly push and release the tiny button on the front of the sensor (and I do mean quickly) - it should start flashing slowly and then go out.5. The app should show the device was deleted. Click "Done"To Pair the sensor:1. Open your Recessed Door sensor cap and pull out the sensor "guts" per the instructions and remove the battery (remove the plastic battery tab if it's stuck to the battery)2. Put the battery back in the sensor (it'll flash red and then go out)3. Open the SmartThings App (I use the newest version, not the Classic app)4. Click the "+" in the upper right-hand corner5. Click "Device"6. Click "Scan" in the upper right-hand corner (it should now show "Scanning...")7. Quickly push and release the tiny button on the front of the sensor (and I do mean quickly) - it should start flashing quickly, then turn solid red, then go out. If it doesn't, try removing the battery for 15 seconds and then putting it back in.8. The app should now show the "Aeotec Recessed Door Sensor" and a "Rename" button. Click the "Rename" button to rename the sensor to something useful, like "Front Door".9. Click the back arrow (<) in the upper Left-hand corner to go back to the "Add Device" screen.10. Click the back arrow (<) in the upper Left-hand corner again to go back to your devices.11. Scroll until you find the "No room assigned" group and the sensor should be listed.12. Press and hold the sensor icon, select "Move to other room", select the room from the list, and click "Move".13. Put the sensor back together and snap on the cap. Use the magnet to see that it's working by watching the status on the device's icon in the app. It should show Closed when the magnet is near and Open when it's away.Install in the door per instructions and enjoy!Time will tell if the battery life is as good as they claim.

I purchased two of these in May 2021. They are solid performers. Quick and reliable open/close detection to date, and battery life had been very good. The factory-installed battery in one unit lasted nearly 2 years while the other lasted only 10 months. Turns out it was starting to fail, with each battery needing to be replaces in about half the time of its predecessor. Finally the unit failed this week (Nov 2023), draining the battery in a matter of hours. An IR camera reveals a failed surface mount element overheating.The other unit still shows 100% battery level three months after its first battery replacement, so these things can and do last a while.