Grundfos Alldos DIGITAL DOSING™ diaphragm dosing pumps feature flow monitors enhanced with automatic calculation functionality. AutoCal helps users control problematic chemicals and demanding processes by automatically recalibrating flow monitors to compensate for all pressure fluctuations. Pumps equipped with this technology are calibrated only once (at the factory) for media with a viscosity similar to that of water, making further manual calibration unnecessary. http://www.grundfosalldos.com