The SteriPen Ultra is a rechargeable UV water purifier with an OLED display, designed to treat up to 8,000 liters of water per UV lamp lifetime on a single internal battery. UV-C light purifies clear drinking water in 90 seconds without chemicals or taste change. The high-contrast OLED display is the most advanced in the SteriPen lineup, showing automatic treatment progress, success confirmation on every use, a running count of treatments, and battery status so you never get caught with a dead purifier mid-trip. USB rechargeable from a computer, wall outlet, or solar panel (sold separately) for full flexibility on any trip. Available in Black/Yellow or Blue/Yellow colorways. Handheld UV pen format with watertight seals and rubber grips for wet-condition handling.