Tripp Lite's OMNIVSINT1000 line interactive UPS system offers voltage regulation, surge suppression and battery support for sensitive electronics. Internal UPS circuits support entry level PC systems for up to 60 minutes during power failures. Automatic Voltage Regulation (AVR) circuits regulate brownouts as low as 159 volts back to usable levels without using battery power. Includes 6 outlets with battery support and AC surge suppression. USB port enables unattended system shutdown. PowerAlert software available via free download from www.tripplite.com. Built-in single line RJ phone surge suppression jacks. Built-in audible alarm and 4 front panel LED. 1000VA power handling ability supports entry-level PCs, network workstations, point-of-sale equipment, small business phone systems, audio/video equipment and home theater systems. Offers 5 minutes battery runtime with a full load of 1000VA and 12 minutes with a half load of 500VA. Supports battery replacement via built-in access panel.