power conditioner
voltage regulator

But there is not such thing on AC electric. Voltage is stabilized back at the substation since that equipment must be large, expensive, located behind security fences for safety reasons, carefully maintained, and remotely monitored.

One item to adjust power - to decrease electric bills - was a synchronous motor that ran constantly and powered nothing. I doubt anyone has a large spinning electric motor constantly running and mounted to the basement floor.

What is a power leveler?

Something that removes or reduces spikes in voltage?

First, a power leveler was for the entire house. Nothing in that URL is sufficient for that kind of power.

Second, the URL has many Monster Cable products. Monster Cable is a benchmark for scams. For example, Monster sells speaker wire with polarity. One end must connect to the speakers. Other end must connect to the amp. Some therefore believe they can hear inferior sound if wire is reversed - scams are that easy to promote. A $6 speaker wire is sold by Monster for $70. If Monster Cable is selling it, those products are scams.

Meanwhile, nothing in that list is called a power leveler. What is a power leveler? I have never heard of one.

I can only deduce that power levelers do not, in fact, exist. :rolleyes:

Or the term is being used for something else. The post implied that this building wide solution fixed smoke detectors that were otherwise tripping on their own. Something does exist. What is it?

Rich seems to have left the thread, or maybe he doesn't realize the question is for him to answer.

I'll bet he means this:

http://www.hardwareandtools.com/invt/1812916

It's actually a power conditioner. It does appear to have worked in that we are no longer experiencing short bursts from our wired smoke alarms in the middle of the night.

It doesn't appear to have saved the power supply, but none of the other equipment appears to have been affected.

I have one of those large power condenser motors bolted to my basement floor, but I use it to deter the flying spaghetti monsters from nesting down there.;)

I think it has something to do with World of Warcraft. :confused:

What power supply got destroyed? Do you also have flying spaghetti monsters?

The power supply to my old computer. I had to go to a used parts store to get a replacement.

Nothing else appears damaged.