The Elcometer 2310 Shell Viscosity Dip Cups are stainless steel cups for quick measurements on-site or during production. They are often used in the printing or ink industry. Compatible with ElcoCalc, a free software that is available on Android and the App Store. Compatible with Android mobile devices running Android 2.1 or later and also iPod, iPhone and iPad running iOS 4.0 or later. ElcoCalc instantly converts viscosity cup flow time in seconds into Centistokes (cSt). Simply dip the cup into the product to be measured, lift it out and measure how long it takes for the contents to empty through the orifice.