Audible Alarms, Automatic Self Test, Automatic Shutdown, Automatic Voltage Regulation (AVR), Built-in automatic bypass, Built-in SmartSlot, Cold-start, Compact and Lightweight, Designed and manufactured under ISO9001 / ISO14001 certification, Double Conversion On-Line, Downloadable Firmware, Early-warning Problem Notification, EPO, Faster Recharge Time, Flashing LED, Generator Compatible, Hot Swap Batteries, Input Power Factor Correction, Intelligent Battery Management, Lightning and Surge Protection, Load Meter, Multi-colored Flashing LED, Multiple Output Voltages, Network-grade line conditioning, Overload Handling Capacity, Programmable Frequency, Rack Mount, Scalable Run Time, Sine-wave output, Software, Status Indicator LED's, Surge Protection, Temperature Compensated Battery Charging, Terminal Mode Programmability, Unattended Safe & Graceful Shutdown, Up to 90% efficiency, User Replaceable batteries, Web Management, Wide input voltage range Includes CD with software, Smart UPS signalling RS-232 cable, User Manual