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kuman KW47-US Electricity Usage Monitor Plug Power Watt Voltage Amps Meter with Digital LCD, Overload Protection and 7 Display Modes for Energy Saving (NO-Backlight), White

    • Based on 4,701 reviews
Condition: New
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Eligible for Return, Refund or Replacement within 30 days of receipt

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Availability: Only 3 left in stock, order soon!
Fulfilled by Amazon
Arrives Jan 28 – Jan 30
Order within 1 hour and 40 minutes
Available payment plans shown during checkout

Features

  • Electricity usage monitor: Monitor is the killer of the high-cost energy appliance, helping you lower power consumption and save money.
  • Digital LCD Display: Large clear LCD display for easy reading, the screen size is 47cmx60cm.
  • Various Parameters: Power(W), Energy (kWh), Voltage, Amps, Power Factor, Cost and Minimum & Maximum Power, ideal for energy consumption monitor.
  • Overload Protection: Once the whole power exceeds the rated power of monitor, LCD will display "OVERLOAD" with booming noise to remind the user
  • Built-in Battery:With 3.6V rechargeable battery(NI-MH), It can store electricity. which allows meter to be moved and viewed without losing readings.

Manufacturer: ‎kuman


Part Number: ‎KW47-US-FBA


Item Weight: ‎7 ounces


Product Dimensions: ‎3 x 6 x 6 inches


Country of Origin: ‎China


Item model number: ‎KW47-US


Is Discontinued By Manufacturer: ‎No


Color: ‎white


Style: ‎NO-Backlight


Material: ‎ABS


Item Package Quantity: ‎1


Included Components: ‎Power meter *1 (US plug) User manual*1


Batteries Included?: ‎No


Batteries Required?: ‎No


Date First Available: June 12, 2018


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Jan 28 – Jan 30

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

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Top Amazon Reviews

    • Wise, inexpensive way to see how your household can save energy
To reduce expenses and to help protect the environment, in early 2021 our household started taking a number of measures to cut our energy consumption. Those measures have proven successful: total 2021 electricity consumption in our single-family, detached home in the US SE was about 8,000 kWh (3,200 of which was for HVAC), compared to about 11,000 kWh annual average in previous years. [UPDATE on 1/1/23: our total electricity consumption in 2022 dropped even further to just 5,500 kWh (1,600 of which was for HVAC) for the year. We have HALVED our electricity consumption. Huge savings. This electricity usage monitor continues to operate beautifully. We lend it to friends and family so that they can do their own diagnostics at their homes and see where they can save.] Looking back, we can say that purchasing the Kuman Electricity Usage Monitor Plug has been one of our wisest and most useful moves, and a very inexpensive one at that. The Usage Monitor Plug helped us to gain really eye-opening – and often surprising – insights into our electricity usage, allowing us to identify specific steps we could take to reduce consumption. Most importantly, we learned that “phantom power,” or the energy consumed by things when they are plugged in but not being used, accounted for a lot of our waste. Here are just a few examples: We discovered that our microwave used 64 kWh annually … in standby mode. We estimate that our actual annual use of the microwave takes less than 60 kWh. We now unplug it when we’re not using it. Another big consumer is our modem/router, coming in at 88 kWh/year. We now unplug it when the last person calls it a night. For people with set schedules, a timer switch would also work. Among the other major users of phantom energy are our TV w/ accessories (138 kWh/year when not being used but left plugged in) and our CD player (60 kWh/year in standby). One final example: Our rather old dishwasher is a real glutton, coming in at nearly 700 kWh/year. Newer, more energy-efficient models use less that 200 kWh/year. The next time our dishwasher breaks down, we will replace it rather than repair it. Finally, here are some other products we purchased at Amazon that we can recommend to those interested in cutting home energy consumption: Klein Tools TI250 Rechargeable Thermal Imager: www.amazon.com/gp/product/B089QW8R9S This tool, along with the Usage Monitor Plug, gave us a very good picture of where we were wasting energy. It was thanks to this tool that we realized, for example, that our then uninsulated recessed lights were really problematic, prompting us to purchase the following. FF130E Recessed Light Cover: www.amazon.com/gp/product/B002XVPUAO If you have recessed lights and they’re not well insulated in the attic, energy wastage can be massive. These were easy to put in, sealed with Great Stuff: www.amazon.com/gp/product/B00KSANBTY AcuRite Wireless Indoor Outdoor Temperature and Humidity Sensor: www.amazon.com/gp/product/B00T0K8NXC We got two of these to go with our AcuRite weather station. They allow us to monitor temperature and humidity in four places at once: outside, in our living room, in our crawlspace, and in our unfinished attic. Thanks to these readings, we have established a smarter, more energy-efficient way of ventilating our crawlspace. They also helped us see that our attic needed additional ventilation in the roof, prompting us to purchase the following. 4 SEASONS Solar Powered Polycarbonate Vent, Weatherproof Design, Quietly Cools Up to 500 Sq Ft, 400 CFM: www.amazon.com/gp/product/B01DMSCPJA Aootek solar lights 120 LEDs with lights reflector, 270 degree Wide Angle, IP65 Waterproof, Security Lights for Front Door, Yard, Garage, Deck (4 pack): https://www.amazon.com/gp/product/B07NQ4L1SB , as well as Solar Lights Outdoor,WWimy 210 LED 2500LM Motion Sensor Lights with Remote Control, 3 Heads Security LED Flood Lights, IP65 Waterproof, 270° Wide Angle Illumination Wall Lights with 3 Modes (2 Packs): www.amazon.com/gp/product/B08T9F2MM1 Purchased in August 2021, these lights continue to work well here in the SE, saving us over 150 kWh/year. We shared some of these lights with relatives in the North; they also report that their lights are going strong after a rough winter. STATINT Window Film Privacy One Way Daytime Mirror Static Non-Adhesive Solar Glass Film Heat Control: https://www.amazon.com/gp/product/B07W3VCZNF RYB HOME Room Darkening Patio Door Curtain, Hanging Room Divider Screen Insulated Drapes Privacy Wall Panel: www.amazon.com/gp/product/B07D32DJ2V , as well as RYB HOME Blackout Curtains & Drapes - Total Privacy Thermal Efficiency Backdrop Curtains for Bedroom Room Divider Vertical Blind Living Room Patio Sliding Glass Door: www.amazon.com/gp/product/B077SZRBNJ Grandekor Blackout Window Blinds and Shades Cordless Cellular Shades: www.amazon.com/gp/product/B07NWBGVL3 ... show more
Reviewed in the United States on March 31, 2022 by Carl Stubbs
    • Measurement device is great
It helps really well to measure your devices consumption
Reviewed in the United States on June 7, 2024 by Juan Pablo Oviedo
    • So far seems good.
Very simple to use. It has different modes but you don't need to remember them all from the manual. You can go through it once and then it's all self explanatory. It can read 1800w max, so a strong microwave or hairdryer(check your devices!). I love the min wattage and max wattage reporting. The cost calculator is also very good. Build quality is okay. It feels lightweight but it's form factor is unproportionally large for it's weight. It's almost like holding a hollow brick. I wouldn't recommend for heavy duty applications or packing to work with you everyday. Overall it does the job for a fraction of the cost! ... show more
Reviewed in the United States on May 30, 2024 by joshua
    • Great
It lets me see the savings
Reviewed in the United States on May 28, 2024 by Donald w mayo
    • Xlnt product
Easy to use..screen readings large.
Reviewed in the United States on May 24, 2024 by Amazon Customer
    • Sólido y preciso
Hace su trabajo bien
Reviewed in the United States on May 23, 2024 by Cristian Arenas
    • A less costly clone of a Kill-A-Watt meter
This sort of meter is handy to discover how much electricity a single device (or multiple devices connected to a power strip) use under various usage conditions. This info can be handy to help optimize total power usage around the house (for example, to find ways to lower your electric bill). Many years ago, when I first started doing this analysis, about the only device on the market to do this was the classic Kill-A-Watt meter. However, over the years I've lost the Kill-A-Watt meters I've bought, so when I recently wanted to again do this analysis I looked into getting another Kill-A-Watt. But when I looked at prices of new Kill-A-Watt meters on Amazon, I found that the price has actually gone up over the years (vs lowering over time). However, this device appears to do the same function for about 1/3 of the price of a new Kill-A-Watt. So I decided to get it and see if it would do the job, and thankfully this device seems to be a decent "clone" of my old Kill-A-Watt for a fraction of the cost. Now this device isn't an exact duplicate of a Kill-A-Watt, as it does come with a different size, shape, and controls vs the Kill-A-Watt. But functionally this device performs the same function. And since this device is functionally the same, for a fraction of the cost, that's "good enough" for me. If any of you are curious, the main thing I'm currently using this meter with is my new window air conditioner (important, given the high temps that are currently hitting my part of the country). With this meter attached (to the AC cord) I get a constant readout of how much power that AC unit is currently using. This not only tells me how much the AC is adding to my electric bill, but also what state the AC unit is in. For example, if the power usage is around 70 watts, it means that the AC fan is running but the AC compressor isn't currently on. Conversely a usage in the 380-450 watt range means the AC is fully cooling with both fan and compressor active. And, of course, with the AC off the power usage goes to 0 (which is also reflected by this meter). ... show more
Reviewed in the United States on June 6, 2023 by Amazon Customer
    • Worked 3 years then....?
The meter has been plugged in for 3 years and I only use it in the Winter to monitor an electric blanket, I leave the meter plugged into the wall but unplug the blanket in the off season. After 3 years of use it now needs to be reset occasionally. I like using amp meters on devices in which there is no visible means of determining their working status, you don't know if a blanket is warming until you jump into a cold bed....brrrrr. Also sometimes an electric blanket will 'burnout' on only one setting and with an amp meter you can discover which setting has failed. I've had no indication that the meter is becoming warm or smoking as has been commented on in other reviews, so far it's just an occasional resetting issue which I can cope with if it doesn't fail completely at only $12 for 3 years of service it seems like a good value ... show more
Reviewed in the United States on October 27, 2023 by I. C. SPOTZ

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