This paper presents new hardware equipments low-cost and the software for researcher to monitoring and diagnosis of thermo-electric generator modules (TEG). The system designed to allow the physical characteristics tracer and reveals the internal resistance of thermogenerator modules where tested under different values of temperature, and provides also the information of maximum power point. This tracer developed based on a microcontroller board family called ChipKIT Max32 which is connected to Matlab\ Simulink. The load of this tracer based on a capacitor varying. The output results data acquisition of TEG can be traced on an oscilloscope or using Matlab environment. These results showed the effectiveness of the present prototype.