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Wallabot peers 4 inches through walls to identify pipes, wires, and other hidden objects
The Android-only Wallabot device is apparently designed to help you avoid sawing through a waterline or prematurely snipping an electrical wire by virtue of showing you what lurks beneath your walls before you begin working. The device, which is demonstrated via video below, is paired with your Android and then pressed against the wall, where it renders various objects in a vivid purple, thereby transforming otherwise seemingly boring walls (and other solid objects) into virtual archaeological excavations: