The Pro-Series Dual Channel Pressure Volume Controller (Dual APCH) combines two independent APCH units into one, reducing significantly the footprint of a complete system. The Dual channel APCH can be utilised in soil testing applications that require two pressure controllers, like effective triaxial, permeability, Rowe cell, and unsaturated triaxial. The improved design allows the water chamber to be easily filled and de-aired from the top side.

Dual Channel Pressure Volume Controller units can be used to precisely control water pressures up to 3,500 kPa, with a pressure resolution of 0.1 kPa and volume resolution of 0.001 cc. Additionally, the device includes two auxiliary channels for the connection of extra analogue transducers, along with an input designed for the incorporation of an Automatic Solenoid Valve; the use of the Automatic solenoid valve enables, together with Clisp Studio Software, the full automation of many tests such as Triaxial test by opening and closing valves as required by the test.