Using universal symbols, Journey's LCD screen displays your choice of how much water you want to purify (1/2 or 1 liter), battery status and a countdown timer to tell you when the process is complete and your water is safe to drink. The screen also tracks the number of uses and signals when lamp usage approaches its life limit.At 8,000 doses, lamp life for the Journey will allow you to purify water for a long time to come. If you purified four liters of water each and every day, your Journey would last almost six years!The Journey is light, weighing in at just 4.5 ounces (128 grams). And like all SteriPEN models, it's fast. It takes just 48 seconds to purify 16 ounces (0.5 Liter).
