Night vision expert Darren Rogers reviews the Guide IR510 thermal imager. It shows up rats, car engines, even how much corn you have left in the feeder.

For more, go to http://www.thomasjacks.co.uk/guide_infrared/product.asp?ref=2204

This item is in AirHeads, episode 21. To watch it on YouTube, go to http://bit.ly/airheads21

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