The SMART1000LCD SmartPro LCD 120 V, 1000 VA/500 W line interactive uninterruptible power supply 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 your desktop computer or audio/visual components, this line interactive UPS switches to battery backup mode in ms to keep your connected equipment running long enough to save files and shut down safely with no data loss. While all eight NEMA 5-15R outlets protect against surges, four outlets also provide up to 3 hr of UPS battery support for a DVR component, 60 min of support for a basic desktop PC and LCD monitor and 10 min of support at half load (250 W). Automatic voltage regulation (AVR) corrects undervoltages as low as 89 V without using any battery power. EMI/RFI noise filtering improves your equipments performance and prevents damage. A 1038- J surge suppression rating protects your equipment from harmful power surges. Space saving NEMA 5-15P plug with 6 ft cord connects to any NEMA 5-15R socket and allows furniture to be placed flush against the wall. Large rotatable LCD screen with dimmer shows real time input voltage, overload, AVR and battery statuses at a glance. With Tripp Lite free PowerAlert software, the SMART1000LCD enables safe unattended system shutdown and file saves in case of a prolonged power failure.