What do you look for in a wattmeter?
They're apparently not expensive.
I was surprised these wattmeters only have one recepticle as I thought they'd be shaped like an extension cord with a gosinta and a gosouta.
But that's why I'm asking what you look for when buying a wattmeter.
I've no experience with these devices, but if I were shopping for one I'd probably investigate the ones that provide the best memory to track the usage-over-time history. Some seem to provide only Min/Max history from the memory. John T.
Did you see this one that has a power cord ?
The gosinta is on the back. You plug it into the receptacle and then plug the appliance into the meter. Using an extension cord makes more sense as you may not be able to see anything if the plug is behind the appliance.
As for the wattage changing, that can vary with some appliances if the load changes. I'm thinking like a washer with minimal load versus full load.
Roll over the inages. The gosinta is a plug in the back side.
I've tried a couple of those, and while useful for spot-checking consumption at any one time (so long as you can see the small display), they're far less convenient to see usage history. Eventually the display faded and it became pretty useless. I prefer this type of thing:
During last winter's lowest temp week, I put an hour meter on my furnace's gas valve to determine how many hours per day the valve was on.
Turns out my furnace is about 2.5x as big as it needs to be.
Depends on what you actually need :-)
I had one that measured current, average, max, min and total power over the time it was connected. It had a tiny battery to keep the clock running and the values when disconnected. The feature that might be missing is getting the values on a computer or perhaps a phone. Another feature would be a table of values over time.
But the unit one day failed. The microcomputer inside went nuts.
A cable on the input side can perhaps make easier to read the values: the tiny screen may not be positioned right for your reading in all cases.
I have a Kill-A-Watt meter that I like. Includes Watts, kWh, power factor
Our local weatherman is a climatologist. I found this interesting about the future.
Check NASA's website. Mars' climate is changing too. Scientists are baffled.
Your point is? They may figure it out over time.
We don't live on Mars and have no control, but we do things on earth that can have an effect.
I suspect that whatever is causing climate change on Mars is causing climate change on Earth. Have the Martian climate wackos banned gas stoves and cars yet?
I bought one of those 10+ years ago, but before I had a chance to use it, I misleid it. Now I need an archaologist to find it.
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