Easy to use Could use a backlight Great product, great price I purchased this meter to measure the power consumption of products my company wishes to sell. So far it has worked out well and it also provides the energy costs projected out to a year. This helps with the marketing aspect too.

good gizmo opens a window into your electric bill easy to use Looks cool Costs a lot Pretty good gift! Ever pass an idle moment wondering what your computer costs in electric bills? How about that fan on the shelf? Your space heater?

Wonder no more. Just plug this gimmick into a wall outlet, and your hourly electric costs will be displayed in big letters all the time.

My entertainment center costs me about $12 a month in electricity. Anytime I get curious I can move the meter to any outlet in the house to identify the real power hogs that are loading up my electric bill. However, at around $75 bucks, it will take a lot of savings to pay for this toy. But don't worry -- you'll get your money's worth just playing around with it. And it's a great gift for your environmentally-minded grandparents that already have everything the need.

The very durable exterior and plug in gives me great confidence that I will be using this product for a long time. None so far. I have used this product all over my house and now I am saving loads of money. I exposed many of my appliance that use standby power with this device and now I put them on power strips so I can completely turn them off. I have great confidence in this product.

Another plug and play device (easy to use). Exceptional in getting people thinking about energy use and cost. Needs a screen backlight! Good value for the price. I bought a few for my company and now I see them attached to the water cooler the photocopier, computers etc. It certianly provides answers to those that always wanted to know just how much energy that appliance/devices uses. see summary

It is very simple to use. The instructions were EZ to follow. It works a exactly as advertised. None Found. This is an excellant product. I purchased two of these meters to incorporate into a display we had built for a GOING GREEN expo thru our local Chamber of commerce. Within a few hours we of operation it could project the yearly cost for running conventional lighting as compared to LED lighting. Now that the show is over, we have a line up of employees wanting to take one home to plug into various appliances. (I'm First). People have no idea how much money is going out the door with idle appliances and electronics. Plug in that 2nd entertainment center thats in your spare room (turned off) and see what thats costing in one year!!!

As advertised, it is easy to operate. I use both the monthly average cost mode and the total accumulated cost mode. Blocks an entire outlet even though it only needs one socket. Everything that the company advertised about the product has been true. The modes operate as I hoped they would. I used the Kill-A-Watt EZ to determine if my old refrigerator is the cause of my high power bills. I plugged it in, dialed in my power costs, and sat back to wait for a few days for the monthly average to stabilize. Turns out the refrigerator isn't my problem, so the money I spent on this device saved me (at least temporarily) from buying a new refrigerator. I also tried it out on our home theater system.

Best power useage gauge I have ever come across. Lots of features, and very easy to use. The only meter that I have come across that will show total energy use (not just power use). And relatively cheap as well! Two minor quibbles 1) It can only be manipulated while plugged it, so it can be somewhat awkward to use if the outlet is in a difficult to access place. 2) The screen is not back-lit, so it can be hard to read in a dark corner. Despite a couple minor issues, this is an excellent and highly useful product. By seeing the energy useage rather than just the power (though you can see this as well), you can see the true cost of your appliances (eg keeping your TV plugged in over night or your computer on when not in use). See above

Easy to set up (Enter KWH rate). Gives usage cost by total, hour, day, week, month and year. Has to be plugged in to view readings. This is not a problem if it is plugged into an extension cord, but if it is plugged in to the wall outlet, you have to get down on your knees to read it. It works good. The Kill-A-Watt EZ performs as described in the web page information. I purchased it to find out what various appliances were costing me to run. I found out that an old 1940's refrigerator that I use as a backup, was costing hardly anything to run (I thought it was an energy hog). On the other hand, I found that leaving my desktop computer and printer on all the time was costing me $4/month. Also, my laptop hooked to a 19" monitor was costing another $4/month. I have decided that can get along by turning at least one of them off. I would recommend the Kill-A-Watt to anyone who wants to learn what various appliances are costing them to run.

it gives me an idea of what it costs to run electricity in solar and grid watts/$$$ hard to read without becoming 19 inches tall glad i bought it I have used it to monitor blockheaters , and to gauge cost to reimburse borrowed services [plugging in at other peoples outlets

easy to understand functions good price have not found any Would by it again, will tell my friends This little device is a perfect unexpensive tool to figure out what your Appliance power usage is. I plugged in to see how much all my servers in the office cost me.
Not electrician needed........ unplug your (whatever) plug Kill-A-Watt EZ in the outlet and plug your (whatever) in the Kill-A-Watt EZ........that's it.

Program the price for your KWH and you are good to go.

Easy estimating right away per day;per week; per month; per year; or since it is plugged in.

I have a extension cord with 6 outlets plugged in and run 4 Servers trough 4 Battery backups; two fans; two modems and my router!
Now i know since i am using the Kill-A-Watt EZ my servers did cost me
$0.06 per hour; $1.56 per day; $10.90 per week; $46.86 per month; $570 per Year!!!! Since i have the Kill-A-Watt EZ all my server equipment was using $ 57.81 in Power

A product that works. If there is a power cut, the accumulated data is not lost. Be sure and read the manual regarding setting up the meter. By the seat of the pants you are not likely to be able to do it. However you needn't do any setup if you only want to keep tract of the power usage. I'm very pleased with this product. This unit works by plugging it into a power outlet and then plugging in your appliance, power bar with multiple appliances, etc. into it. So that part is a no brainer. It is limited to 110 volt applications, max 15 amps.

I use it to measure the amount of power (kilowatts) used by a water tank deicer on a water barrel for some horses that belong to my son. He pays for the power it uses.

I was relieved to find that the accumulated power measured by the meter isn't lost if there is a power cut. The meter continues to add to the number of kilowatts recorded previous to the power outage. The accumulated readings can be zeroed at any point.

You can enter your cost per kilowatt and the meter will then give you a total for the accumulated usage and give you estimated costs per hour, day, week, or month. A nice feature, but the essential feature I wanted was its ability to measure accumulated power usage.

The meter also gives a real time readout of the line voltage. A nice feature if you want to check the line voltage.

all good none excellent, no problems! easy to use!

Price is affordable, instructions are easy to follow. Difficult to read display. Could use a backlit display. Good price, easy to use, prompt delivery. I would recommend this product. Very satisfied with the product. A small price to pay to determine possible savings in energy costs.

Covers a great deal of simple measurements. It would be nice to have a short cord to get into blocked and low outlets. Good for the price. I was surprised at the 2% accuracy. That's excellent on a low prices meter. I'm happy.

cheap, easy None! Great device. Well worth the money. I just lost my office to a fire. It burned to the ground and was a total loss. Until I can rebuild, I'm working from my home.

My employer used to reimbursed me for my office's electric bill. Now, thanks to the Kill-A-Watt, I have a way to track my usage while working from home!

Very Cool Device.

Bill Swingle, P.E.
Power Systems Engineer

Easy to use. Gave me the information I needed quickly. none I'm very pleased with the meter. I own rental units. The electric bills have been killing me. With the Kill-a-watt EZ meter I was quickly able to identify which appliances were using excess electricity. Great product.

Small and very easy to use. I had the Kill-A-Watt up and running moments after opening it. No output for downloading information and the timer continues to run even when monitored device is off. Very impressed with the operation and ease of use. The Kill-A-Watt is a great deal for the price. Its simple operation and compact size make it a great tool to measure power consumption.

Easy to use, as long as you put in onto a short extension cord so you don't have to get down on eye level with it in an outlet. Only bad point is it doesn't have magnetic memory on the kw charge. You have to enter it each time you move from one place to another. Easy to use and a good tool to monitor 120v electricity users. This can function as both a kw usage meter plus an easy way to back calculate what the kw user is actually doing. For instance, one user I put it on is my new heat pump on my hot water heater. Before, I was just using an estimate that the solar contractor gave me on how much hot water his device would supply. Seemed like a good number; so, that was the amount I used to justify my heat pump installation. Turned out pretty close. The Kill a Watt EZ told me we were using 43 gallons/day (back calculated from kw valve). I'd been using 50 from the solar guy.

Does exactly what it is advertised to do. Easy to use. No user manual shipped with product. Pricey. High shipping costs. I like the product. Nothing further to add.

Intuitive, easy to use, large easy to read readout No recording, rate entering allows for only three places beyond the decimal point An intuitive, easy to use device that provides more than sufficient information to determine specific costs for individual electrical appliances. The Kill-A-Watt EZ is easy to use. It is intuitive and easy to figure out, even without using the provided instructions. It would be better to enter more than three places beyond the decimal point when entering the rate. As it is, I had to round-up the rate. I found it easy to compare the cost of operating the propane furnace and an infrared heating unit to heat my mobile home. It would be nice to have the device record readings if it didn't increase the cost too much. Overall, I can highly recommend the Kill-A-Watt EZ for determining the cost of operating individual electrical appliances.

Holds data so you can remove it from what you are testing and plug it in somewhere that you can better read the display. The physical size covers second outlet when plugged into a duplex receptacle. This is second one I have purchased and would recommend it for anyone. If you are going to move it around a lot I would get the next one up that has a cord on it.

easy to use, provides power consumption on all 110v items. Especially useful electronics in the stand by mode. Pays for itself if persistent in finding ways to cut power usage. none Exposes watts to shed Kill-A-Watt EZ should be a house hold item

very accurate. I use it to monitor my pool motor. Next year, I will use it to monitor my new pool heater. cannot find any... yet... great... love it...

Easy to use very user friendly display might not be bright enough for some people Perfect for the curious consumer that wants to see exactly how much anything is usung Took the KILL-A-WATT with me on a house call and showed a customer where they could imporve there usage by looking at there appliances and how old they are. Well after showing the wife hoe the KILL-A-WATT worked she was off and running around the house and I even had to sell it to her because I dont think she would have given it back! Over all it is a good reference tool as to when auditing homes for energy savings. Would recommend it to anyone.

Simple and very easy to use The display is a little difficult to read unless one kneels down and gets eye level. I no longer have to worry about how much my appliances are costing me to operate. I have peace of mind since I can just monitor the kwh usage on my Kill-A-Watt EZ. I am completely satisfied with this purchase.

Handy and easy to use. Reasonable price. Needs larger print for the feature being measured. Lighted dial would be nice. I like it. Good tool to check energy usage and to know what each appliance is costing per unit time.

measures the volts, kw, cost - exactly what I was looking for. none so far. Very satisfied with the Kill A Watt EZ. Very satisfied with the Kill A Watt EZ.

It performs as advertised. It just needs a display light. Often times, you have this in a spot that is awkward to see the display from. I had to get a separate flashlight on multiple occasions so I could see and write down my numbers before removing it from the outlet. The meter works fine. I just needed to be able to illuminate the display to get my numbers written down before unplugging it. The meter works fine. I just needed to be able to illuminate the display to get my numbers written down before unplugging it.

The meter was easy to use and the power to cost feature was very convienent in regards to determining the amount of power a device uses. None Very userfull in determining which devices are the biggest power hogs in the house, next to the a known appliance, the house hold dryer. I used the meter to investigate the amount of power that a dehumidifier used. Over the summer I thought my 13 seer air conditioner was the culprit. Using the Kill-A-Watt EZ meter I was able to detemine that the dehumidifier running 24 hours a day in an unfinished basement used more power than the air conditioning for the same time frame.

If you are considering using solar or wind power and currently have a gas electric fired high efficiency hot water tank, the tank requires 500 Watts of power to light and then runs at 75 Watts to run the exhaust fan.

This was important information as during the big black out in 2003, there was no hot water, and my 400 Watt inverter was insufficient to light the igniter for the hot water tank.

A rechargeable tooth brush uses 2 Watts of power all the time.

The meter was used to measure everthing to determine how many phantom loads there were from simple electrical devices sitting there turned off, but still drawing power from the grid.

Very simple tool in realizing cost savings, just by switching thing off that have a standby power or hot standby mode.

This device makes management of household electrical energy practical. Great concept and design. My unit has an intermittent fault in the display. Could there be a problem in quality control? What gets measured gets managed. This device needs to find its way into every household in North America. Congratulations on a great product but for heaven's sake make sure they work properly before you ship them.

Easily fits between outlet and appliance. Easy to set up and understand. None. Excellent product. Easily fits between outlet and appliance. Easy to set up and understand.

Great product with virtually no competition in price range. Intuitive interface. I wouldn't say this is bad, but an added feature to make this really rock, would include a real time power meter. I recommend the Kill-A-Watt EZ. It is good value. I am running some small electrical equipment off of a neighbor's power. I pay him double what the power costs him and we are both happy.

It is really nice that it computes the Dollar value of consumed power as well.

Just a very useful tool.

Large display and easy of use. Great for testing VA load and voltage Wish it came in a pouch Great product I sell phone systems with multiple electronic items plugged into one power supply. I use the Kill A Watt to measure VA load so I can size the right UPS battery backup unit for our customers. I'm very pleased with product.

Easy setup None Must have tool Great way to fing out just what all the items plugged in are using, like me you will be suprised.

Ease of use, UI is straightforward No real complaints. I wish it wouldn't reset after a short power outage, (up to 30 seconds). I get those a lot during summer months. I like the product I like the product. It confirmed my suspicions about certain appliances, but I was hoping to find another more substantial user of power (not your product's fault!). Surprising to see the difference with the stereo in standby and when turned on with nothing playing through it.

Easy to use. Easy to read. Non-volatile memory for power usage. None I've found. A very handy device that does exactly what you think it does. I wanted to know just how much money I'm spending to power my computer lab. I have 6 monitors and 5 computers that run constantly. The monitors power-down automatically, so I couldn't very well estimate how much power I was using. After just a few days the Kill-A-Watt EZ had monitored the exact usgae and thanks to the programmable cost per KW I was shocked to find I am spending $35 a month for electricity.

Easy to use with a fairly intuitive controls Blocks the lower outlet even when inserted into the top outlet. Met my needs at a reasonable price I had a simple application to get a load readout for a small group of servers and routers that I have at home. The unit handles this problem well, showing immediate feedback when I turn any particular piece of equipment on or off. That gives me good feedback on what equipment I should sacrifice first during a power outage to extend UPS battery life.

There was a minor glitch in shipped - my order was mixed with another one and the wrong product delivered. However the billing crew promptly responded to my email and we quickly arranged an exchange.