Alpha Technologies ALI Plus UPS is a microprocessor-controlled, pure sine wave, line interactive UPS using advanced Auto Voltage Regulation (AVR) with double boost and buck. The AVR allows for a wider input voltage operating range which results in fewer transfers and extended battery life. More Compact in size utilizing only two rack units, the ALI Plus UPS provides installation flexibility for tower, rack or wall-mounted configurations. Additional features include: smart battery management, automatic frequency selection, hot-swappable batteries, smart communication, optional internal SNMP, TCP/IP base power management software and dry contact relay alarms. Power ratings of 700VA to 3000VA available.