Overall condition: Very Good. My own PowerCenter. 1 Owner. Used for home stereo equipment. Always pulled the plug out of the wall during thunderstorms anyway just for safety so I don't think it ever experienced a power surge. Never heard the alarm go off. All indicator lights illuminate.

The Monster HT 800 Home Theater PowerCenter has a Monster Clean Power Stage 1 filter for noise-free power for sensitive electronic components and protection from power surges. It has 8 color-coded outlets plus a coaxial line protector to guard your system against sudden power surges and spikes. The audible system alarm, color-coded outlets and visible surge indicator all combine to provide a high level of security for your valuable electronics.
High-Level Surge Absorbtion
The 1850-joule rating provides a high level of protection in the event of sudden power surges
Active Power Filtering
Monster Clean Power Stage 1 filters provide noise-free power to your sensitive electronic components, lengthening shelf life and improving performance
Color-Coded Oulets
Color-coded, labeled outlets are provided that make it difficult to confuse one cable with another
Flexible Installation Options
The 8' Monster AC power cable with FlatProfile right-angle plug provides flexible installation options
Multiple Inputs
Eight total outlets, including 3 spaced for use with AC adapters, insure maximum compatibility with a variety of electronic devices