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Multiple award winner (time magazine best invention), the SteriPEN® is the only portable water purifier that uses ultraviolet (UV) light to destroy waterborne microbes.

The smallest, lightest SteriPEN®, 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.

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 AdventurerOpti retail package includes 2 non-rechargeable (disposable) CR123 batteries and a neoprene case with belt loop. Device works with containers with minimum 1.75 in. diameter opening (ie Nalgene wide-mouth bottles). Comes with easy User Guide.

Like all SteriPENs, the opti is Fast (48 seconds for 0.5 L (16 oz.)), Light (128g /4.5 oz.), Effective, and even easier with it’s LED light indicator which tells you when cycle is finished.

Weight: 103 grams with batteries!
Size: 15.5cm x 3.3 x 2.2
Battery: Uses two CR123 batteries (included)
Lamp Life: 8,000 purified cycles (8,000 litres)
Battery life: 100 treatments
Effective against: cryptosporidium, viruses, bactieria, giardia, bird flu and influenza, E.coli & salmonella, staph, strep, cholera and other germs