I would buy the iGrill 2: Weber iGrill 2
The iGrill 3 was a mistake for me because I don't have the right Weber grill and didn't know about this housing. The iGrill 2 can be attached via a magnet.

Yes, but it's best to buy a stand like this one: https://www.herr-der-dinge.de/haushalt...

Actually, you have to install the part in the Weber grill, which I only noticed when the product was already with me. Of course, the thermometer works otherwise, but you have endless parts and cables lying around next to the grill... the battery compartment is a separate block that is connected via a cable and is always lying around uselessly;-)