The SteriPEN 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.
- Optical sensor doubles as a convenient LED flashlight
- Flashlight mode is activated by pressing and holding the single button down for 3 seconds
- Clear lamp cover focuses the LED light
- 8,000 UV treatments
- Includes 2 non-rechargeable (disposable) CR123 batteries and a neoprene case with belt loop
- Works with containers with minimum 1.75 in (4.45 cm) diameter opening, for example Nalgene wide-mouth bottles