Tripp Lite SmartPro Digital SMART1000LCD UPS System

Tripp Lite's SMART 1000LCD Line-Interactive Digital UPS System offers voltage regulation, surge suppression and long-lasting battery support for personal computers, network workstations, home entertainment systems and media centers. Internal UPS circuits support entry-level PCs for up to 60 minutes or individual VCR/DVR component for as long as 3 hours during power failures. Prevents data loss, viewing interruptions, lost recordings and loss of component programming. Automatic Voltage Regulation (AVR) circuits regulate brownouts as low as 89 volts back to usable levels without using battery power. Offers complete power protection in an attractive black tower configuration. Includes 4 battery-supported outlets, plus 4 additional surge suppression-only outlets for items not requiring battery support. USB port enables optional unattended system shutdown without data loss in the case of extended power failure, USB cable included.

Great product, but one major annoyance

This product works very well and enables you to work through brownouts and blackouts, but it has one major nuisance: Every time the backup battery is activated, an audible alarm goes off and repeats every 5-10 seconds. The only way to disable it is to manually press the mute button each time the power goes out. If you have 2-3 of these around the house and you're in the middle of a storm, you're likely to go nuts running around the house muting the alarm all the time.