Help selecting some devices

Different things work for different people, so it will help if we know a little bit more about the use cases you are trying to solve. And what country you are in. And what kind of budget you are considering. And your tolerance for devices that may take a lot of work to get set up properly.

For example, just with Multi sensors the price will range anywhere from $10 to $90, but the very cheap ones may require a lot more maintenance overtime. And the very expensive ones may have features that you don’t need.

The device class features FAQ might be of interest (the topic title is a clickable link)