The LAUDA Variocool circulation chillers impress with their space-saving construction and versatility provided by a wide variety of options. They are simple and convenient to operate via the color TFT display. Other interfaces can be retrofitted to supplement the standard USB interface and alarm contact. Positioned in the front of the device for easy access. Starting with the VC 1200 model, the working pressure and flow rate can be adapted to the respective requirements in different applications using an integral bypass and optional pumps to achieve optimum temperature control thermostating.