The SMART1500LCD is a SmartPro Digital UPS offers voltage regulation, surge suppression and long-lasting battery support. LCD display indicates input voltage, battery capacity and a variety of operating conditions. Display is rotatable for easy viewing whether UPS is in vertical or horizontal position. Supports entry-level PCs or single VCR/DVR components during blackouts. Regulates brownouts and over voltages from 75 to 147V back to usable levels without using battery power. HID-compliant USB port enables full integration with built-in power management and auto shutdown features of Windows and Mac OS X.