The APC SMT2200RM2U Smart-UPS simplifies your installation & maintenance while minimizing your space requirements and protecting your equipment. The Green operating mode bypasses unused electrical components in good power conditions to give you enhanced operating efficiency without reducing protection to your devices. The power management of the UPS can be managed through the network to provide ease of use even in remote locations. The audible alarm actively lets you know if the battery is low or if there is an overload condition.