The Gecko EZ-CAL / EZ-LINK flow transfer standard is intended for in-line calibration and proving of flowmeters using the actual process liquid. Gecko EZ-LINK is the portable interface box that accepts flow, temperature, and pressure inputs from the transfer standard flowmeter and the meter under test. Gecko EZ-CAL is an intuitive Windows® based calibration software package. It enables the user to set up and run verification and calibration profiles as well as store and print user-defined calibration certificates.