Tripp Lite's OmniSmart 350HG offers hospital-grade UPS protection with built-in line interactive voltage regulation, intelligent monitoring and unattended shutdown capability. Hospital-grade plug and outlets, plus built-in isolation transformer with faraday shield remove common mode noise. Listed as a hospital-grade device under UL2601-1. 330VA power handling capacity supports computers, internetworking equipment and other critical loads during commercial power failures. Line interactive voltage regulation corrects brownouts as low as 75v and over voltages as high as 147 back to normal 120v levels, saving battery reserves for use only during complete power failures. Includes 4 outlets, diagnostic LEDs, 2 line phone surge suppression and built-in DB-9 communications port that works with included PowerAlert Software and cabling to provide automatic unattended shutdown of connected network and PC applications.