Lightning and Surge Protection - When measured via ANSI/IEEE 587 Category ''A" and "B" tests, the suppression performance of the APC Smart-UPS is superior to virtually all separate surge suppressors.
Noise Filtering - Attenuates EMI/RFI line noise that can cause data errors and keyboard lockups, ensuring better performance of protected equipment.
Status Indicator LED's - Dual Status Indicator - Alerts you to the unit's power status. Green indicates it's ready for use. The Red indicator signals the unit's shutdown to save your automobile battery from draining.