11 Who’s Minding the Planet? HEADLINE Internal Data Logging Wi-Fi Connection Multiple Outputs Intuitive Menu YSI.com/AMAZON The most reliable and accurate bubbler in the industry comes in an intelligent, compact, easy-to-use design. Water professionals may operate Amazon in stand-alone mode with internal logging, or as a seamlessly integrated level sensor within a hydromet station. AMAZON BUBBLER *Shown with optional display.