Adjustable voltage sensitivity Provides the ability to adapt the UPS for optimal performance in specific power environments or generator applications. Audible alarms Provides notification of changing utility power and UPS power conditions. Automatic self-test Periodic battery self-test ensures early detection of a battery that needs to be replaced. Battery failure notification Provides early-warning fault analysis on batteries enabling timely preventive maintenance. Building Wiring Fault Indicator This LED informs users of potentially dangerous wiring problems in the wall circuit. Cold-start capable Provides temporary battery power when the utility power is out. Disconnected battery notification Warns when a battery is not available to provide backup power. Hot-swappable batteries Ensures clean, uninterrupted power to protected equipment while batteries are being replaced. Simple battery replacement Increases UPS availability by allowing quick, easy battery replacement. Transformer Block Spacing Connect bulky transformer block plugs without covering up other outlets. USB connectivity Provides management of the UPS via a USB port (not available on all models). Marketing Features Battery-protected and surge-only outlets Reserves power capacity and run time for connected equipment that require UPS battery back-up while providing surge only protection for less critical equipment. Protection Surge only outlets Protect secondary electronics from surges and spikes without reducing battery power used to run primary electronics during an outage. Battery and surge protected outlets Back up and protect your hardware and data during power outages, surges and spikes. Availability Intelligent battery management Maximizes battery performance, life and reliability through intelligent, precision charging. Battery failure notification Provides early-warning fault analysis on batteries enabling timely preventive maintenance. Automatic self-test Periodic battery self-test ensures early detection of a battery that needs to be replaced. Manageability LED status display Quickly understand unit and power status with visual indicators. Audible alarms Provides notification of changing utility power and UPS power conditions. Safety Safety-agency approved Ensures the product has been tested and approved to work safely with the connected service provider equipment and within the specified environment.