This Gadget Lets Your Phone See Through Walls
The Walabot DIY
The device magnetically snaps onto the back of your Android phone (Sorry iPhone users) and uses an app to produce high quality 3D imaging of what’s behind your wall!
Sick of having to ask your parents or significant other to help put up a shelf up?
If you’re feeling ambitious enough, you may be able to tackle it alone with this bad boy.
For only $199, you can’t go wrong.