The centrepiece of the ThinkTool diagnostic device consists of twelve functional modules which meet the demands of various application scenarios. The rear of the device, which acts as a host during diagnostics, can be quickly removed to gain access to the interface. The host recognises which module is currently inserted and starts working. The various modules are for instance able to analyse thermal images or to take over the function of an endoscope. A diagnostic report can also be created and even printed out with the aid of a print module.