The Discovery X3 Differential Scanning Calorimeter is a high-performance thermal analysis system designed to measure heat flow with outstanding accuracy, sensitivity, and throughput. Its three-sample Fusion Cell enables simultaneous analysis with exceptional baseline stability and resolution, making it ideal for detecting weak transitions, determining enthalpy and specific heat capacity, and separating complex events using Modulated DSC. With enhanced technology, automated calibration and verification routines, a reliable autosampler  and a wide choice of cooling options, the X3 offers a flexible and highly productive platform for characterising materials across research and quality-control settings.