The Back-UPS RS offers high performance protection for your business & office computer systems. It provides abundant battery backup power, allowing you to work through medium & extended length power outages. It also safeguards your equipment from damaging surges & spikes that travel along utility, phone & network lines. A distinguishing feature of the Back-UPS RS is automatic voltage regulation (AVR). AVR instantly adjusts both low & high voltages to safe levels, so you can work indefinitely during brownouts & over voltage situations, saving the battery for power outages when you need it most. Additional features like audible alarms, LED status indicators, user replaceable battery, push-button circuit breakers & plentiful outlets make the Back-UPS RS the perfect unit to protect your business' productivity from the constant threat of power problems & lost data.