The major things you need are glass test tubes, silicone tubing, plastic stir bars. Take a look at the Hardware page (https://chi.bio/hardware/), I have listed ideal specifications and suppliers for these.
Secondarily, you ideally want a computer/PC to plug the devices into, though this can just be a lab PC that is used for other things.

As to the lids, some simple ones come with the devices (made from PCBs and washers). I am currently working on 3d printed lids that will ideally be airtight and autoclaveable, I will post up schematics of these in the next few weeks…