Product Review

SteriPEN Adventurer Opti was built for the toughest environments in the world. It has a optical eye that senses water to ensure safe use and effective treatments. When camping, backpacking & hiking, this is the water purification system for you. The Adventurer Opti is powered by two CR123 batteries(Included in purchase) making it a lightweight water purification system and keeping it operating effectively in even cold environments.