The Steripen Adventurer Opti is an essential, highly efficient UV water purifier designed for backpackers, international travellers, and outdoor enthusiasts who demand a reliable survival tool. Utilising safe and powerful ultraviolet (UV-C) light rays, this device eliminates 99.9% of waterborne threats—including bacteria, viruses, and protozoa like Giardia and Cryptosporidium—without changing the taste of your beverage or utilising harsh chemicals. Operation is incredibly fast and intuitive: you simply select the appropriate treatment size, submerge the lamp into a container of clear water, and gently stir until the signalling indicator confirms the cycle is complete. Its unique dual-purpose optical water sensor ensures that the UV lamp only illuminates when fully submerged to maximise safety, while also acting as an integrated LED flashlight when the activation button is held down for three seconds. Striking the perfect balance between high-end utility and minimal bulk, this lightweight purifier fits effortlessly into any pocket, backpack, or emergency response kit, granting you total peace of mind on any adventure.

Key Features:

• Advanced UV Water Purifier: Uses safe ultraviolet light technology to destroy the DNA of 99.9% of harmful bacteria, protozoa, and viruses, providing safe drinking water without chemicals.
• Dual-Function Optical Water Sensor: This intelligent mechanism guarantees the germicidal lamp activates only when immersed in liquid, and it beautifully transitions into an integrated LED flashlight to light up your campsite or trail in the dark.
• Flexible Treatment Size: Programmed to handle variable amounts of water depending on your needs, perfectly optimising its output for either a 0.5-litre (16 oz.) or a 1.0-litre (32 oz.) volume.
• Rapid Treatment Time: Works with extraordinary speed, delivering clean, drinkable water in just 48 seconds for half a litre or 90 seconds for a full litre.
• Long-Lasting Lamp Life: Built for long-term durability and continuous backcountry use, the resilient UV bulb delivers up to 8,000 activations before needing a replacement.
• Reliable Battery Power: Driven by two high-performance CR123 lithium photo batteries (included), which provide the device enough power to condition up to 50 litres of water per battery set (or up to 30 litres with rechargeable alternatives).
• Ultralight and Compact Build: Weighing a mere 103 grams (3.6 oz) with its power source installed, this highly portable device minimises your pack weight and takes up virtually no space in your gear.
• Versatile Container Compatibility: Designed to integrate with a wide variety of vessels made of glass, plastic, or metal, provided they meet a minimum bottle opening diameter of 35mm (such as standard wide-mouth bottles).

Please note: Suitable for clear, unfrozen water only. Filter particle-filled water before UV treatment.

Brand : Steripen

Battery : Replaceable

Weight : 103g

Dimensions : 15.5cm (L) x 3.3cm (W) x 2.2cm (H)

Batteries : 2x CR123 Batteries (included)

Battery Life : 100x 500mL treatments / 50x 1L treatments

Lifetime : 8000 x 500mL

Water Source : Tap Water, Clear Water

Technology : Ultraviolet (UV-C) Water Purifier