Tarantula questions?

Those things might harm a tarantula indeed, since they are very sensitive to sound vibrations, and those high-frequency things are designed to keep out true spiders and insects as well as mice. I don't know the range of sound for one of these things, so I honestly can't say whether or not the sound would penetrate to your room, especially if you kept the door shut. I CAN suggest a really great site where you can join for free, to ask questions of long-time tarantula keepers, and perhaps one of them has had some experience with these high-frequency anti-pest systems. I would not want to advise you to get a tarantula, only to have it subjected to extreme stress.

No, MOST tarantulas don't poop a lot; in fact you will probably not even notice it at all, UNLESS you happen to get one of the tarantulas in the Avicularia genus, usually known as "Pink-Toe" tarantulas in the pet trade. THOSE poop like Minah birds, and they will actually shoot a stream of spider poo at your face, if they feel threatened! This is one of their main defense mechanisms, and it works quite well(Been There, Done That)!

tarantulas are sensitive to vibrations( it is how they hunt) I think that the machine would probably bother it.

no they do not poop alot

not sure but u have wicked cool taste