EMI (electromagnetic interference) is a common phenomenon in our environment and may have an effect on functioning of most electronic devices. In case of PCT (Projected Capacitive Technology) products, this results in the touch detection interferences. In PenMount controllers there are implemented extremely effective hardware and software solutions to avoid interferences on various frequency bands and maintain the accuracy of touch detection. AMT’s PCT solutions meet the highest EMC standards and can be successfully used in industrial, medical and military touch applications.