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Big Brother is not only watching you, now he’s counting how many times you are watching him. A creepy new camera/sensor called the EyeBox2 ($1,000, direct) from a Canadian-based company named Xuuk, promises to capture and record how many eyes look near where it is mounted from as far as 33 feet away, enabling advertisers to glean how appealing their billboards, posters or even in-store products are—at a much lower cost than was possible with earlier technologies.

The palm-sized EyeBox uses a beam of infrared light to detect when someone’s eyes are pointed in its direction.