An exciting new medical device is about to become available that could help millions of people who suffer from diabetes.

The GlucoWatch is about to go to market. The device is worn like a watch and takes glucose readings through the skin, without actually piercing the skin.

A Pennsylvania man has been testing the GlucoWatch so he can teach others about it.

Gary Scheiner, a diabetes educator on Philadelphia's Mainline has worn the GlucoWatch and tested it.

Scheiner straps the GlucoWatch on, hits the button and it begins a three-hour calibration.

With the help of a battery, the watch runs a little electric current that draws glucose to the skin. The gel that sticks the watch to the skin measures the sugar.

Scheiner said that wearing the watch does not mean you won't have to prick your finger anymore.

"You're still going to have to test your blood sugar at meals and at bedtime. The data this provides doesn't replace the blood sugar testing you normally do. It supplements it. It provides additional data between those tests," Scheiner said.

Scheiner said that finger pricks that come along with testing for glucose don't hurt as much as they used to because of new, thinner and adjustable lances.

Scheiner said that the GlucoWatch will be good for people like him who use an insulin pump and for others, too.

"You can also use it to evaluate your blood-sugar control after meals, seeing how high your blood sugars are spiking. During sick days it can be used to ward off serious problems and you can also use it to alert you if your blood sugar is dropping too low. It has a siren alarm that will go off if the blood sugar is dropping significantly," Scheiner said.

The company that makes the GlucoWatch said that they expect it to be on the market in the next few weeks.

When it is, it will be available by prescription only and will cost $600, plus $4 for each sensor, which is good for only 12 hours. The device is not covered by insurance, but many diabetes sufferers may find it worth the price.