A welding or plasma cutting torch , comprising: - a voltage sensing component comprising voltage sensing circuitry configured to measure a welding or plasma cutting voltage of the welding or plasma cutting torch , to convert the measured welding or plasma cutting voltage into a first output signal, and to transmit the first output signal to a processing system ; and - a current sensing component comprising current sensing circuitry configured to measure a welding or plasma cutting current of the welding or plasma cutting torch , wherein the current sensing circuitry is configured to convert the measured welding or plasma cutting current into a second output signal, and to transmit the second output signal to the processing system and wherein the current sensing component comprises a Hall sensor , characterized in that the welding or plasma cutting torch further comprises - a vibration device configured to provide haptic feedback to a welding operator by directing the welding torch to vibrate, wherein, in use, the processing system compares the first and second output signals to respective threshold values and if the welding voltage or the welding current exceeds a threshold and generates a feedback signal, - a display device configured to display the measured welding or plasma cutting voltage or the measured welding or plasma cutting current of the welding or plasma cutting torch , - a trigger configured to mechanically actuate a trigger switch between an open and a closed position, and - a training switch controlled, in use, by the processing system to a closed position to enable the plasma or welding torch to be used in a live-arc welding mode when also the trigger switch is in a closed position by pressing the trigger or to an open position to enable the plasma or welding torch to be used in a simulation mode, said training switch and said trigger switch being electrically coupled between a first welding conductor and a second welding conductor . - a voltage sensing component comprising voltage sensing circuitry configured to measure a welding or plasma cutting voltage of the welding or plasma cutting torch , to convert the measured welding or plasma cutting voltage into a first output signal, and to transmit the first output signal to a processing system ; and - a current sensing component comprising current sensing circuitry configured to measure a welding or plasma cutting current of the welding or plasma cutting torch , wherein the current sensing circuitry is configured to convert the measured welding or plasma cutting current into a second output signal, and to transmit the second output signal to the processing system and wherein the current sensing component comprises a Hall sensor , - a vibration device configured to provide haptic feedback to a welding operator by directing the welding torch to vibrate, wherein, in use, the processing system compares the first and second output signals to respective threshold values and if the welding voltage or the welding current exceeds a threshold and generates a feedback signal, - a display device configured to display the measured welding or plasma cutting voltage or the measured welding or plasma cutting current of the welding or plasma cutting torch , - a trigger configured to mechanically actuate a trigger switch between an open and a closed position, and - a training switch controlled, in use, by the processing system to a closed position to enable the plasma or welding torch to be used in a live-arc welding mode when also the trigger switch is in a closed position by pressing the trigger or to an open position to enable the plasma or welding torch to be used in a simulation mode, said training switch and said trigger switch being electrically coupled between a first welding conductor and a second welding conductor . <EOS>