1000VA Line Interactive UPS with 10 NEMA 5-15 outlets plus 4 USB charging ports for home/office. Internal Sealed lead acid batteries, voltage regulator, surge suppressor and bypass outlets for larger loads. Provides continuous power to WIFI routers, alarm systems and computing equipment. Larger capacity models in tower offer advanced LCD display that is interactive and illustrates function such as battery levels, % of load, % of batteries, input voltage, output voltage, Hz. Web interfaces allow local and remote monitoring. Audible alarms indicate operation and battery levels. Certified by regulatory agencies CE, NOM, TUV, Retie.