There is both a local and online integration available. Some of the sensors like the weather forecast (which is the most accurate weather forecast I have ever had for my location) are only available from the cloud, others are available locally.

I have a weather flow tempest. Expensive and my first one died after a few years but it works well and gives you cumulative rain readings through its native ha integration.

I have had good luck with Hikvision. Better than the one Reolink I have.

If you are just talking about monitoring ink levels, a lot of printers are supported I think. I use an Epson 3260 ink tank and it’s been the best ink jet I’ve owned. Ink is fairly cheap, reports ink levels to HA, and clogs less than other ink tank printers I’ve owned, the wireless printing works well with iOS too.

I don’t think that’s true. I am just starting a large project and have no problem acquiring their products in medium to large quantities (16 units needed for this). Their web site is still up, no announcements. I think this is just a regional stocking issue if anything. The one supplier in my country (Czechia) who lists number of items in stock had 145 of the dimmer 2’s in stock.

I’m a Zwave man. Aeotec ones give very high res power consumption tracking so I can automate based on patterns in usage (can detect when my washers/dryers finish, etc). The Fibaro ones are a bit cheaper but not quite as good (but still haven’t failed me once).