Geekzone: technology news, blogs, forums
Guest
Welcome Guest.
You haven't logged in yet. If you don't have an account you can register now.




52 posts

Master Geek


Topic # 81682 16-Apr-2011 09:33
Send private message

Thinking about getting a mains power meter to see what my computers are costing me to run, both turned on and on standby. I was looking at just a cheap elto one, but how accurate are they really? I would also like to run around checking the consumption of the routers and TV as well, so I would like it to be accurate at quite low power draws.

So will the elto do me? Or is there a slightly more expensive and better option. I'm not wanting to pay more that say $50 though.

(also, I hope this is an appropriate forum)
Thanks 

Create new topic
1574 posts

Uber Geek
+1 received by user: 11


  Reply # 459331 16-Apr-2011 11:43
Send private message

I have one of the elto ones. I can't say whether or not it is accurate, because I don't have anything to compare it to, but it seems to be fairly responsive.
i.e. a polling rate of about once per second.

It would probably be more than adequate for your purposes.

Hope that helps. :)

534 posts

Ultimate Geek
+1 received by user: 5


  Reply # 459332 16-Apr-2011 11:43
Send private message

I have used the Dick Smith meter which, I think, is the same as the Elto, perhaps rebadged, for some time.

I can say the readings are very consistent and always seem to be in the right ball park. Measurement of low power devices, standby etc has never been outside of manufacturers ratings . 

It's certainly saved me the cost of purchase many times over.

The routers I've had seem to measure around 9 watts. The best on the market for power consumption seem to be around 5 w. 

 
 
 
 


160 posts

Master Geek
+1 received by user: 18


  Reply # 459349 16-Apr-2011 12:54
Send private message

I have Jaycar's one. It is clear from my using it that it only has resolution to within a few watts at the low end of the scale. If I get time before going away on Wednesday, I'll test it against a proper power analyser at uni and get back to you.

The power factor seems to give particularly quantized measurements. What amused me was that my 24" iMac used only twice the power of my 19" Acer lcd screen! Those LED backlights are a real power saver.

20265 posts

Uber Geek
+1 received by user: 3826

Trusted
Subscriber

  Reply # 459404 16-Apr-2011 14:41
Send private message

The elto one with 3 cells is great, it uses a real digital metering chip.

The 2 cell one is crap.

You can tell by looking at the back of them in the blister pack or reading the lable to see how many it takes.

Warehouse was clearing them out for $15 but mine has now run out of them. I bought 6 from there and the remaining 3 stayed on the shelf for ages, apparantly some other warehouses didnt move them from electrcial to reduced to clear so you might be in luck.




Richard rich.ms

1574 posts

Uber Geek
+1 received by user: 11


  Reply # 459408 16-Apr-2011 14:52
Send private message

richms: The elto one with 3 cells is great, it uses a real digital metering chip.
The 2 cell one is crap.


When you say "cell", do you mean 2xLR44 button cell batteries vs. 3xLR44 button cell batteries?



52 posts

Master Geek


  Reply # 459510 16-Apr-2011 19:21
Send private message

Righto, I just went to Dick Smith and got one this afternoon. It's the one with 3 cells.

20265 posts

Uber Geek
+1 received by user: 3826

Trusted
Subscriber

  Reply # 459540 16-Apr-2011 21:14
Send private message

dontpanic42:
richms: The elto one with 3 cells is great, it uses a real digital metering chip.
The 2 cell one is crap.


When you say "cell", do you mean 2xLR44 button cell batteries vs. 3xLR44 button cell batteries?


Yes, thats the only external difference between the 2 versions of it.




Richard rich.ms

1574 posts

Uber Geek
+1 received by user: 11


  Reply # 459545 16-Apr-2011 21:19
Send private message

richms:
dontpanic42:
richms: The elto one with 3 cells is great, it uses a real digital metering chip.
The 2 cell one is crap.


When you say "cell", do you mean 2xLR44 button cell batteries vs. 3xLR44 button cell batteries?


Yes, thats the only external difference between the 2 versions of it.


Ahh... good to know. Might have to see if I can't find a 3-cell version. Currently only have the 2-cell one.
Thanks for that info.

13166 posts

Uber Geek
+1 received by user: 2191

Trusted
Subscriber

  Reply # 459573 16-Apr-2011 23:10
Send private message

I have one I got from the warehouse. I have no idea which version or how accurate it is, I just wanted a general idea.

It says my PC uses 80W at full load (all cores and drives working, but not the graphics card), and 20W on standby, and 15W when it's turned off. I have no idea what it's doing with that power when it's off. That doesn't include the monitor.




AWS Certified Solution Architect Professional, Sysop Administrator Associate, and Developer Associate
TOGAF certified enterprise architect
Professional photographer




52 posts

Master Geek


  Reply # 459609 17-Apr-2011 10:01
Send private message

Hmm.... that seems very low in comparison. Mine was 8 Off, 87 idling, and 120 booting. But then again, different parts would make a big difference.

13166 posts

Uber Geek
+1 received by user: 2191

Trusted
Subscriber

  Reply # 459619 17-Apr-2011 10:37
Send private message

I have Q6600 on an Asus motherboard, and a fanless GT8500GT graphics card. I have a few 120mm fans in there. SSDs may lower the boot number too.




AWS Certified Solution Architect Professional, Sysop Administrator Associate, and Developer Associate
TOGAF certified enterprise architect
Professional photographer


Create new topic



Twitter »

Follow us to receive Twitter updates when new discussions are posted in our forums:



Follow us to receive Twitter updates when news items and blogs are posted in our frontpage:



Follow us to receive Twitter updates when tech item prices are listed in our price comparison site:





News »

Vodafone TV — television in the cloud
Posted 17-Oct-2017 19:29


Nokia 8 review: Classy midrange pure Android phone
Posted 16-Oct-2017 07:27


Why carriers might want to embrace Commerce Commission study, MVNOs
Posted 13-Oct-2017 09:42


Fitbit launches Ionic, its health and fitness smartwatch
Posted 12-Oct-2017 15:52


Xero launches machine learning automation to improve coding accuracy for small businesses
Posted 12-Oct-2017 15:45


Bank of New Zealand uses Intel AI to detect financial crime
Posted 12-Oct-2017 15:39


Sony launches Xperia XZ1, a smartphone with real-time 3D capture
Posted 11-Oct-2017 10:26


Notes on Nokia’s phone comeback
Posted 10-Oct-2017 10:06


Air New Zealand begins Inflight Wi-Fi rollout
Posted 9-Oct-2017 20:16


The latest mobile phones in perspective
Posted 9-Oct-2017 18:34


Review: Acronis True Image 2018 — serious backup
Posted 8-Oct-2017 11:22


Lenovo launches ThinkPad Anniversary Edition 25
Posted 7-Oct-2017 23:16


Less fone, more tech as Vodafone gets brand make-over
Posted 6-Oct-2017 08:16


API Talent Achieves AWS MSP Partner Status
Posted 5-Oct-2017 21:20


Stellar Consulting Group now a Domo Partner
Posted 5-Oct-2017 21:03



Geekzone Live »

Try automatic live updates from Geekzone directly in your browser, without refreshing the page, with Geekzone Live now.



Are you subscribed to our RSS feed? You can download the latest headlines and summaries from our stories directly to your computer or smartphone by using a feed reader.

Alternatively, you can receive a daily email with Geekzone updates.