The best…spy gadgets

TCO DVR Spy Camera

The lens on this mini video camera looks like a button when you hide the rest of the device behind the placket of a coat or suit jacket. Just slip the lens through a buttonhole and you’re ready to bring home 4 GB worth of clandestine footage or still photos.

$25, amazon.com

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Source: Popular Mechanics

Armasight Spark CORE Night-Vision Monocular

There are cheaper night-vision gadgets, but this one “illuminates things with an eerie level of precision.” It’s great for tracking nocturnal animals.

$524, armasight.com

Source: Wall Street Journal

SV-WRSD Wireless RF Signal Detector

This small radio-frequency detector lets you quickly sweep a room for audio transmitters or hidden cameras—a precaution that’s become more useful as “nanny cams” have proliferated.

$180, spyville.com

Source: Wall Street Journal

Esonic U2 Cellphone Recorder

This device makes recording a smartphone conversation simple—if you live in a state whose privacy laws allow it. Just plug the recorder into the headphone jack of any iPhone or Android and turn the recorder on.

$109, sears.com

Source: Gizmodo.com

Gerber Impromptu Tactical Pen

Gerber’s new tactical pen will write upside down or in the rain, but “shows its true colors when danger strikes.” Made of machined steel, it can be a weapon of last resort and features a steel tip strong enough to break glass.

$62, gerbergear.com

Source: Gizmag.com