SteriPEN Adventurer with Solar Case

The smallest, lightest SteriPEN, the Adventurer Opti 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. The new optical sensor also doubles as a convenient LED flashlight. The solar charging clamshell case pulls double duty, recharging the included double-cell rechargeable CR123 lithium battery and providing handy, secure storage for the purifier. Battery can also be recharged with the included dual voltage power adapter.