Award Winner - Backpacker Magazine Editors' Choice Award 2011

The Steripen Adventurer Opti is the latest and greatest advance in outdoor water purification. This water purifier features an optical eye to sense the water, SteriPEN UV light that effectively destroys giardia, cryptosporidium, bacteria and viruses in seconds, and provides up to 8,000 one-liter treatments. Scared of the dark? Fear not - the optical sensor on the Adventurer Opti water purification systems doubles as a convenient LED flashlight.

DECENT FEATURES of the Adventurer Opti by SteriPen

• Uses revolutionary optical eye to sense the water
• Standard insulating sleeve around the UV lamp allows purification in even the coldest of waters
• SteriPEN UV light destroys giardia, cryptosporidium, bacteria and viruses in seconds
• Purifies 0.5 liters (16 oz.) of water in 48 seconds, and 1.0 liter (32 oz.) in just 90 seconds
• UV lamp provides up to 8,000 one-liter treatments
• Optical sensor doubles as a convenient LED flashlight
• Clear lamp cover focuses the LED light
• Works with containers with minimum 1.75" diameter
• Package also includes two non-rechargeable (disposable) CR123 batteries and a neoprene case with belt loop

The SPECS

• Weight: 103g/3.6 oz. with batteries
• Size: 15.5 x 3.3 x 2.2 cm / 6.1" x 1.5" x 1.0"
• Battery: Uses two CR123 batteries (included)
• Battery life: Disposable - 100 treatments (16oz./0.5L) / Rechargeable - 40-50 treatments (16oz./0.5L)
• UV Lamp Life: 8,000 treatments