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The AdventurerOpti, uses a revolutionary optical eye to sense the water. The patent-pending technology ensures safe use and provides purification in even the coldest of waters. When camping, backpacking & hiking, if you won't have access to the power grid for several days a time, Adventurer Opti is the product for you.
Click here to view the SteriPEN Classic for comparison.
Purify your drinking water in just seconds, and with a built in LED flashlight, never have to see in the dark again.