Guessing how cold things are in your Polar Bear Cooler without proper instrumentation is like trying to tell time by looking at the sun. Let's take the guesswork out of it. Just drop this device, known as a wireless thermometer, in with your goods and you are set. Don't worry. We'll soon be coming out with a Polar Bear Watch as well as Sunglasses for those of us who still like to do things the hard way.
