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Watts Up AC Power Meter

3.7 out of 5 stars 11 customer reviews

Price: $95.59 + $8.78 shipping
Only 15 left in stock.
Ships from and sold by Smarthome.
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Specifications for this item
Brand Name Electronic Educational Devices
EAN 0892221000019 , 0892221000088
Item Weight 2.5 pounds
Part Number WATT'S UP
UNSPSC Code 41113600
UPC 892221000088 , 892221000019

Identify which appliances are your biggest power hogs. What does it really cost to run that elect... See more product details



Product Features

  • Determine what it costs to run any appliance
  • Displays information in true dollars and cents - no need to do the conversions
  • Take it with you when you go appliance shopping for on-site testing
  • Indoor use only

Product Details

  • Product Dimensions: 2 x 4 x 7 inches ; 2.5 pounds
  • Shipping Weight: 1.6 pounds (View shipping rates and policies)
  • ASIN: B00130R810
  • Item model number: 72222
  • Average Customer Review: 3.7 out of 5 stars  See all reviews (11 customer reviews)
  • Amazon Best Sellers Rank: #158,739 in Industrial & Scientific (See Top 100 in Industrial & Scientific)
  • Product Warranty: For warranty information about this product, please click here

Product Description

Identify which appliances are your biggest power hogs. What does it really cost to run that electric water heater or energy-efficient refrigerator? Find out instantly by plugging it - or any other electrical appliance - into Watts Up?, which instantaneou

Customer Reviews

Top Customer Reviews

This is an interesting device with potential, but out-of-the-box it has some serious limitations you should know about.

The device has two data interfaces, mini-USB and Ethernet. All configuration of the device must be done via USB from a Windows computer (there is also a freeware Linux utility, and the protocol is documented as well). The Ethernet port appears to not accept incoming connections of any kind, it only makes outgoing connections at intervals to report its status.

The reason I bought the device was its ability to turn the output socket off and on by remote control over the network. I have a flaky system that periodically needs to be hard power-cycled, and this looked like a reasonably inexpensive way to get that capability.

The way the "net" feature of the device works is as follows: You configure a hostname and path to a POST script and an update interval. Each interval, it will connect to the web site configured and submit a POST request with its current status. The web server can then, if it chooses to, respond with "[1]" to turn the power off or "[0]" to turn it back on. So if you're willing to write your own custom server application to log and control the device you should (theoretically) be able to do whatever you want.

By default the device posts its data to the manufacturer's web site and you can create a free account there to view the logged data and (in theory anyway) also control the power output on the device.

There are a few problems with this. The "free" web account only accepts updates from the device every 15 minutes, and it will reconfigure the device back to 15m if you try to set it up faster.
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2 Comments 33 of 34 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
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Excellent product. I'm currently using it to analyze energy consumption from every device in my house so we have more information to figure out ways to save some $$ in our electricity bill.

It's easy to use, and its many modes give me the numbers I need. Whether I'm looking for watts, peak watts, watts/hour, montly watts/hour, the Watts Up Meter has it.

Only con: it doesn't have a backup battery, so the recorded data is lost immediately once its disconnected.
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I have cut my home electrical power consumption in half after I realized how much the many different electrical appliances, hot water circulation pump, TV, CD player, DVD players, VCR, etc use. Once you know what your electrical devices use, you can turn them off, via an external power switch, except when you are using them. Many devices use 10 30 watts of power in the off mode. I highly recommend this product.
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By Randy on January 18, 2008
Verified Purchase
If you're like me, and you want to know how what devices are electricity hogs, this unit is will do that for you. Even devices that cycle on and off. Look at your electric bill, find your rate, enter it in to the watts up? and you can tell almost instantly how much that device is costing you per month. For example, I was surprised to find out our cable box does not take up any more electricity when on or off. Our Christmas tree surprisingly took more power than we thought. We'll be checking out the led lights next year. Space heaters? I won't use them. I now turn up the thermostat. Next I will find out how much my wife's curling iron and hair dryer are costing us. She may be more careful not to leave them on over the weekend.
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This is a great unit, it gives you the facts. I moved it all through the house attaching it to anything with a plug and came up with some interesting conclusions. Perhaps the most surprising was the fact that my home entertainment system uses almost twice the power when off than on, once you average out "standby" energy use with actual use for the whole year. Like the other reviewer, I put the whole system on a switched power strip I had siting around and it cost me nothing. These are extremely useful and well built tools that highlight the potential for efficiency improvements, the first and most economical step at reducing ones utility bill and carbon footprint.
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This review is for the "Watts Up? Pro" meter. If you are looking at the regular Watts Up? meter which has the simplest feature set of the 4 models, I highly suggest looking at the Pro model instead which isn't that much more expensive, and reviewing their website to note product differences.

PROS:
------

(1)
Excellent Current Wattage, Cumulative Watt Hours, and Max/Min Watts measurement EVEN AT LOW WATTAGE (<5w, <10w) when Amp measurement error increases.

Wattage is furthermore measured 2,500 times per second regardless of how frequently you choose to log. Thus Cumulative Watt Hours and Max/Min Watts figures are going to be fairly accurate regardless of your log frequency.

(2)
The ability to position the meter at a COMFORTABLE READ POSITION and fit the plug into tight spots is very nice.

(3)
It has a measurement available called POWER CYCLE which counts up each time power is lost/regained, which of course if not accounted for could greatly affect accuracy.

(4)
It automatically puts the information into its own built in spreadsheet making my CUT AND PASTE INTO EXCEL easy. Of course it creates a delimited text file for import, too.

(5)
Found the meter EASY TO LEARN AND USE, and the software took at most 5-10 minutes to learn.

(6)
Most expected values tracked, though most folks will perhaps be mostly interested in:
- Cumulative Watt Hours
- Current Watts
- Power Cycle (which tracks when power went off during measurement).

Others measures: Min/Max Watts, Power Factor, Volt Amp (apparent PWR), Avg Mthly Kwh, Elapsed Time, Duty Cycle, Frequency (Hz), Cumulative Cost, Avg Mthly $, Line Voltage, Min/Max Volts, Current Amps, Min/Max Amps.
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