SteriPEN Adventurer Opti


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Product Details

The SteriPEN Adventurer Opti UV water steriliser is an essential bit of gear for countless adventurers and features a patent-pending technology – an optical eye senses water to ensure safe use and effective treatments. The revolutionary optical water sensor doubles as an integrated LED flashlight for added convenience on the trail or around the campsite: hold down the activation button for three seconds to illuminate the darkness.


The SteriPEN Adventurer Opti is powered by two CR123 batteries making it a lightweight water sterilisation system and ensures it keeps operating effectively in even cold environments. The long-lasting UV lamp provides treatment for up to 8,000 litres!


Weight 3.8 oz
Dimensions 6.1 x 1.5 x 1 in
Lamp Life 8,000 treatments
Battery CR123 (included with purchase) or RCR123
Battery Life Disposable — 100, 0.5 liter treatments   Rechargeable — 80, 0.5 liter treatments
Minimium Bottle Diameter 35mm (1.4 inches)
Filter Compatability none


  • Optical water sensor doubles as an integrated LED flashlight
  • The long-lasting UV lamp provides purifies up to 8,000 liters!
  • Works in containers with a minimum 1.75 inch diameter opening. (Like Nalgene wide-mouth bottles one liter bottles.)
  • Contents: SteriPEN Adventurer Opti Water Purifier, two disposable (non-rechargeable) CR123 batteries, neoprene case with belt loop, and user’s guide. 


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