[QUOTE=""Pat"] Snip Tom, If I get a whole house surge protector from Square D for my electric panel box, can I still use an APC-UPS? Because, I not only need surge protection, but I also need power backup for all my computer and other electronic devices. I live near a major highway and people are always crashing into the electric poles, which causes my power to go on and off frequently for short duration's, usually less than a minute. Thanks, Pat[/QUOTE] Yes, a whole house protector does nothing to protect you from power outages or sags in power. You STILL NEED A UPS, and you should purchase a quality one. APC makes nice units. One thing you might want to know, we've had a LOT of UPS's installed all over the USA, about 1500 systems protected by them, and we've never lost a single protected device connected to a UPS while we have lost non- protected equipment. W_Tom will tell you that it's BS, that the UPS will not protect you, but, real-world experience shows that a quality UPS device will protect everything we've seen from power surges that have damaged electronic devices that were not on a quality UPS device. I like the idea of a whole house surge protection device, but it's not a substitute for a UPS, not by any means - you still need a UPS.