The system is a non-invasive and highly portable method of malignant (cancerous) tumour detection (differentiating it with benign tumours) without biopsy within a few seconds. studies suggest that malignant tumour cells have less potassium ions and more sodium ions. hence there is a difference in the conductivity/dielectric properties between cancerous and non-cancerous tumours. this device compares the conductivity and dielectric properties of the tumour with the normal cells and by analysing the difference in dielectric properties determines whether the tumour is cancerous or not. an imaging system is also proposed using a matrix of electrodes for easier visualization.