SEHOMY4 Pack Smart Door Sensor Alarms, WiFi Window Sensor Detector Real-time Alarm Compatible with Alexa Google Assistant, Wireless Home Security Door Open Contact Sensor for Bussiness Burglar Alert

Useless. Doesn’t work.

Setting these up proved to be very easy. I used the Smartlife app and they were pulled up right away. Took all of 5 minutes to get them set up and installed. They are small enough and appear to be paintable to match trim or doors. While I used them the battery life never dipped below 100% according to the app. This was on my front door which was opened and closed multiple times per day.You need a very strong Wifi connection or you don't get reliable notifications for these. Understandable considering there is little to no internal antenna in them because of their size. Even with a good Wifi connection, the alerts that you get are sometimes delayed or never show up. They are not reliable. Also, the box and description show that they are Alexa and Google compatible but never show up in the respective apps. Lots of searching and reading and I still don't understand how to make them work with the apps. Don't expect to use them to set up smart home triggers.I would look for something else.

Works well. Wish there was a way to change on/off to open/close

I was able to successfully connect the sensor device to the Smart Life app. It took several tries, yet it was successful.I set the app to message me when the door opens or closes. I verified multiple times the device is communicating to the App.I was able to successfully link the Smart Life app to the Alexa app in Skills. I was able to add the device to the Alexa app, named “Pantry.” When I open the pantry door, I can the device change state, Open and Close.I created a routine to turn on a light (my pantry light) when the device opens. A separate routine when the door closes. The intent is to turn on the pantry light on/off when the door opens/closes.The routine does not work. The door opens/closes, nothing happens. I verified the device is being recognized in the Alexa app, no issues. I continue to see the device repot open/closed as expected. However, the routine is not working.In my opinion, the device works as expected, the Smart Like app recognizes the device and acts accordingly. The issue, in my opinion the Alexa app has a bug.Working with Alexa tech support did not resolve the issue.Not sure what I am going to do at this point.

These are easy to install and easy to get working. The Integration with Alexa was easy, making it easy to get messages when the status of a sensor changes.The only problem I had was that when one of them stopped working, I didn't know about it. The battery went dead, but the app showed 44%. Another sensor that is used regularly is still at 61%, so I didn't expect one on a door that rarely opens to have dead batteries despite the app showing me that the batteries are good.These show up as connected to WiFi when they need to show that something opened or closed, and then almost immediately after that, the device disconnects. I don't know if the app uses battery data that it gets sent when something opens or closes and a signal needs to be sent, or whether the device wakes up on its own every now and then to report its battery status. If it's not the latter, it would explain why the app never knew that the batteries were dead and never told me that it hadn't gotten any data from the device. If the system can't determine that it lost contact with the device for an extended period, and there's no timestamp from when the battery was last checked, you can't rely on these. If the timestamp is supposed to be the one from when something last opened or closed, that's worthless because it effectively means no reporting at all for a door or window that is almost never opened.

You can't beat this sensor for the price! Prior to installation, I had to split my wireless gateway to reflect 2.4ghz and switch from the 5ghz on my phone over to that one. Once installed, I was able to reconnect my phone to the 5ghz connection and the door sensor still works just fine. Overall very easy installation and I'm notified within seconds on my phone and Samsung smart watch if my front door opens. The only thing that will probably be annoying is the sticky tape when it's time to replace the batteries because I'll have to pull it from the wall with no guarantee it'll restick. Thin Velcro would probably be a smarter option for when I have to take it down and reattach it. Very happy with my purchase