Compact and lightweight, the Katadyn Steripen Adventurer Opti UV Water Purifier uses an optical sensor to detect water and works in even the coldest conditions.

Features

• Easy to use: Simply click the button to activate, place in water and stir; when water is purified, the UV lamp turns off and an indicator signals
• Ultraviolet UV-C light rays safely sterilize clear water by destroying 99.99% of protozoa, including giardia, cryptosporidia, bacteria and even viruses
• UV-C purification of clear water helps protect you from risks that cause botulism, cholera, dysentery, typhoid and more
• Optical sensor doubles as a convenient LED flashlight
• Retail package includes 2 non-rechargeable (disposable) CR123 batteries, a neoprene case with belt loop, and user instructions
• Device works with containers with minimum 1.75 in. diameter opening (i.e. Nalgene wide-mouth bottles)
• One set of CR123 batteries will treat up to 50 liters of water
• UV lamp life: 8,000 treatments
• Small and lightweight, weighing just 3.8 oz. with batteries
• Recipient of Backpacker Magazine's 2011 Editors' Choice Award