The Vertiv™ Liebert® PSI5 1U line interactive rack mount uninterruptible power supply (UPS) is designed to protect and extend the life of your electronic devices in school, home and office. It offers cost-effective protection from downtime and damage caused by power outages, brownouts, sags, surges or noise interference. Automatic Voltage Regulation (AVR) extends battery life and safeguards critical equipment. It ensures availability of critical IT applications such as network closets and small data centers. This battery backup allows orderly shutdown of critical equipment. Add an optional communication card and remotely monitor up to 50 UPS systems through the free Vertiv™ Trellis™ Power Insight Application. It has a 2-year Vertiv warranty with optional extensions for up to 5 years total coverage. Not for sale in Vermont, Colorado, Washington.