Yes, this can be accomplished by using the Auto-On Setting. After enabling this feature, multiple units can be powered on simultaneously by plugging them all into a switched or power outlet controlled by a breaker. When connected to power, the Pro Radar System will automatically power on. When you switch the power off at the end of the day, the units would be powered off.   For specific details on how to use this feature, refer to the Pro Radar System manual | Advanced Menu | Auto On section.