The Dialog Dual 3300-10000VA range with on-line double conversion (VFI) technology offers a very high quality and is easily the best solution for protecting “mission critical ” users and safety devices , guaranteeing the highest level of reliability. The Dialog Dual range may be mounted directly on the floor or in rack cabinets. With a low noise level thanks to the digitally PWM controlled ventilation system the Dialog Dual is an exceptional new addition to our product range.