Designed for police to look inside your house (illegally?) without letting you know they're spying, the reverse peephole viewer un-distorts the convex lens that's designed for homeowners to view out, not in. You'll definitely find a use for this, for instance whenever that guy Bob pretends he's not home so he won't have to pony up the $50 he owes you.

Available for $88.

Peephole Reverse Viewer Tactical Door Viewer [Spy Gadgets via Coolest Gadgets]

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