Onvis Smart Motion Sensor, Wireless Hygrometer, Thermometer, Works with Apple HomeKit, Smart Home Automation, PIR Motion Detector-Thread (iOS 17.4 and Above is Required)

I’m very impressed with these monitor sensors I bought one of the black outdoor ones for my mailbox and it works wonderfully! It’s accurate very little false alarms. It’s especially great to detect automobiles coming into the driveway. It’s about 55 feet away from the nearest hub and doesn’t not have connectivity issues. I also bought the white ones to keep tabs around my exterior doors. They work just as good! I have them under a soffit or something covering it. I know it says for indoor but I’m giving a shot outdoors. I love how easy it is to connect to Apple home! It’s through Matter so setup was a breeze!

The product itself is pretty decent. It actually works pretty well but there is a lack of instructions of what all you can do. Also the sticky strip on the back is way too weak. The sensor fell multiple times until I finally had to screw it to the wall. Hoping it didn’t cause damage to it but I won’t know until it fails. If it hadn’t been for these two things this would have been 5 stars.

If you’re using Apple Home Kit. You have to pair the device, and then unplug the device you’re using as a hub to reset the connection. Once I did that, the device worked smoothly.

I like that it uses AAA batteries instead of stupid weird little disc batteries - those aggravate me to no end. I'm using it as a trigger for a heating pad inside an outdoor cat house for the neighborhood cat. In my smart home I have an automation setto turn it on when it's 40º outside and off when it's 42º. I bought a second one that I'll probably use for a low key weather station so I don't have to rely on the airport reading which is about 6º-8º warmer than the house.

I ordered this as a replacement to an older (SMS1) device that is no longer supported by the latest revision of the Onvis iOS app. Improvements: 1) Plotting of the temperature and humidity log information works, and the graph format is improved over what was available with the older device/app version. The y axis scale is padded to a reasonable range outside of the min/max and the increased sampling frequency results in a plot that is easier to read. Also, the UI for selecting dates is improved. 2) The SMS2 device allows temperature calibration via an offset so the reading can match a calibration standard. I think this was missing with the SMS1, or at least I could never find a way to do this. At this point I've used the new SMS2 for only a couple of days, but so far it looks like a good upgrade.