*Control panel LED Status display with on line : on battery Audible Alarm
*Alarm when on battery : distinctive low battery alarm : overload continuous tone alarm
*Surge Protection and Filtering *Surge energy rating 160Joules
https://www.apc.com/shop/us/en/products/APC-Back-UPS-800VA-120V-AVR-LAM/P-BX800L-LM
