Fax/modem surge protection protects internet downloads and data transfers. Multi-LED display allows instant power quality check. Smart battery management offers shorter recharge time, extended battery life. UPS will even warn you if the batteries are faulty. Cold start feature starts UPS when no utility power is available. Utility power surge suppression arrests spikes and surges which can damage hardware. RS232 port enables communication with host. Included solution power management software provides monitoring of UPS, control and shutdown of any PC or server.