The SMART1050SLT SmartPro 120V 1.05kVA 650W Line-Interactive Sine Wave UPS provides battery backup and AC power protection against blackouts, brownouts, power surges and line noise that can damage electronics or destroy data. Ideal for backing up point-of-sale applications, VoIP systems and small business networks, the SMART1050SLT switches to battery mode in milliseconds to keep your connected equipment running long enough to save files and shut down safely with no data loss. Featuring eight NEMA 5-15R outlets and a six' power cord with 120V NEMA 5-15P input, the SMART1050SLT has an internal battery that provides 19 minutes of support at half load and seven minutes at full load. Front-panel LEDs indicate line power, battery power, overload, voltage regulation and battery status. An alarm sounds to indicate power failure, low battery or overload. Automatic voltage regulation (AVR) maintains selectable 100V, 110V or 120V nominal output over an input range of 83V to 145V without using battery power. EMI/RFI noise filtering improves your equipment's performance and prevents damage. A 690-joule surge suppression rating protects your equipment from harmful power surges. With PowerAlert software (available via free download), the SMART1050SLT enables safe unattended system shutdown n case of a prolonged power failure.