There are two kinds of people in this world. The ones who call the Ghostbusters and the ones who do the actual ghostbusting. If you want to be a part of the latter, you’d better have the right equipment.
Assuming you already have your Proton Pack and your Ghost Trap, you just need one more tool. Thankfully, Mattel has released a replica of the Ghostbusters Neutrino Wand to help you with your hunting and capturing needs. The company worked with Sony Entertainment to get all the details right and it even has vibrations, kickback, light meter animations, and an extending tip with lights. The sound effects come right from the film itself. There are SO many small details, like much of pieces appearing to be welded together.
So, other than actually emitting a proton beam, it is as authentic as it can be. Check out the video to see the wand in action. And look at that sweet box that it comes in.