This is the first of these types of devices in the world to make possible the simultaneous monitoring of all five output channels. It has also been able to improve the user interface in comparison with previous devices and to achieve major improvements in safety during operation - vital for medical devices - by using an LCD display with a touch-sensitive operation panel. The small size of the unit itself and miniaturization of its circuits have led to the realization of a compact design that needs little space. Furthermore, front accessibility has been achieved by placing the five channel output ports in locations linked to the operation panel.