The Bell & Gossett ESP System Syzer is available for download to an Apple iPhone or iPad, allowing HVAC professionals to enjoy the same functionality while working in the field. It includes a tool that shows the relationship between Cv, flow and head; a Pipe Length/Pressure Drop tool; and a bundled Circuit Setter/Triple Duty Valve calculator. Clink the link for a free download.itunes.apple.com/us/app/bell-gossett-systemsyzer