Bests & Worsts Reviews from Amazon

My son needed this for a big AP Physics project. After using it for a few weeks, the fuse blew. His teacher (who's the one who determined why it stopped working for us) said we could get a fuse pretty inexpensively, but we haven't done so yet. The fuse actually could've been blown as a result of user error too. UPDATE- When I posted my original review, the company immediately contacted me & offered a replacement. My son was almost done with his project (that he needed this for) at that point, so I declined. I appreciate a company that stands behind its products though!