Steripen Adventurer Opti

Powerful germicidal UV (ultraviolet) light destroys waterborne bateria, viruses, and protozoa (giardia & crysptosporidium) that could make you sick. The smallest, lightest SteriPEN®, the Adventurer Opti, uses a revolutionary optical eye to sense the water. The long-lasting UV lamp provides 8,000 water treatments!

The new optical sensor doubles as a convenient LED flashlight. It’s a great backup light when camping or taking a night-time walk to refill your water bottle. The Flashlight mode is activated by pressing and holding the single button down for 3 seconds.The clear lamp cover focuses the LED light.
The Adventurer Opti retail package includes 2 non-rechargeable (disposable) CR123 batteries and a neoprene case with belt loop.

This SteriPEN device works with containers with minimum 1.75 in. diameter opening (ie Nalgene wide-mouth bottles).