Best Electrical Meter Sockets of 2025

"This is a great little meter for the price. It's very simple to use; just plug it into an outlet and then plug an appliance into the device. The nice blue backlighting and large numbers make it easy to read even in dark spaces. It measures line voltage, current, calculates power used, and integrates power over time to give you energy usage in kilowatt-hours. I even found it helpful in diagnosing a faulty service neutral, preventing potential damage to my appliances!"

"I paid $19.34 for the 2-pack on 11/4/23. These meters have a large, bright display, easy controls, and are very accurate. They track all the usual real-time info like Volts, PF, Watts, Amps, etc. The cumulative power consumption option is fantastic for finding out how much an item uses over time. Just be sure to get the updated model with the backlight!"

"I've been using this meter for a couple of months. The large bright blue display is fantastic! However, I found that some controls are not very intuitive, and if you want to know how much power your device uses over time, you need to manually track when you plug it in and unplug it. Overall, it's a good purchase if you want to measure electricity usage."

“So far, this Kill-a-Watt has been working well for me. I'm a bit cautious about the grounding pin breaking, as noted in some reviews, but I've been careful to pull it straight out without any issues. I appreciate that it remembers usage, especially when placed in hard-to-reach spots.”

“This device is fantastic! I measured my old refrigerator and discovered it was consuming 100 kWh per month. After switching to an inverter model, it now only uses 60 kWh. This device was pivotal in my decision to upgrade to a more efficient model.”

“I’ve found the Kill-A-Watt to be quite useful around my home. It helped me identify that my satellite TV receiver uses 13 watts even when off, which adds up over time. It’s a great tool for figuring out which devices waste energy and for planning to save on our winter bills.”

"I purchased this item to monitor the output watts of my generator. It maintains watts and my generator is only 2000 W, so it seems to work quite well. The auto cost calculator function is a game-changer for me, especially with my EV charger, as it allows me to optimize charging times based on peak and off-peak hours."

"I've been using this to see where most of my electricity goes. I thought the fridge was the worst culprit for consumption, but it turns out not to be as power-hungry as I had suspected. The device is monitoring my entertainment and computer area, providing all the necessary data I want and has backlighting."

"Lo estoy usando para medir el consumo en watts de unos aparatos electrónicos y después de 20 días ha registrado información útil para identificar cuales equipos consumen más electricidad. Es simple de usar y arroja mediciones de diferentes tipos como wattaje y amperaje."

"I find this energy meter to be a valuable tool for monitoring our home energy consumption. The dedicated buttons for each display mode make it incredibly easy to access the information I need without endlessly pressing the same button. I'm currently tracking our small electric heater's usage, and it accurately displays both the power consumption and cost. The bright backlit LCD screen is easy to read, though I wish the running time display wasn't limited to just two digits after 100 hours of use."

"I purchased two of these HBN plug-in electric meters in mid-December 2023. Despite the number one complaint about lack of backlight, I appreciated the simplicity of getting the information I need with just one button press. To my surprise, the first meter I plugged in had a backlight feature that I didn’t expect! Although they aren't super accurate, being off by 0.8 volts between two identical meters is acceptable for my needs. Overall, they offer the best value for the price."

"I bought this meter to check the cost of operating my window AC unit, which has an initial startup draw of 11 Amps and a running rate of 5 Amps. It works great! After setting the cost per kilowatt-hour, it accurately calculates total Wattage, Amperage, Voltage, and the cost of electricity usage. It's perfect for my Prius PlugIn too, handling the 12 Amp draw during charging without any issues."

"I was curious about my 'tea machine' and whether it consumed a lot of energy. Thanks to this device, I discovered it’s an energy saver! Using it is a breeze—just plug it in and hit the 'Watt' button to see real-time usage. For example, when boiling water, it uses about 900 watts, but just 0.3 watts when keeping warm. It really helps me understand my appliances' energy use!"

"This gadget is incredibly straightforward to operate, and honestly, I can't believe it wasn't invented sooner. It's smart money! After plugging it in and using it, I was shocked to see how much energy my old appliances consume. While it doesn't calculate costs in dollars, I find doing the math myself isn't too hard."

"As someone interested in monitoring energy consumption, I find the P3 P4400 Kill A Watt Electricity Usage Monitor is a game-changer. The display is easy to read, and it provides valuable insights into my energy usage. I’m focused on reducing my carbon footprint, and this monitor is essential for making informed decisions!"

"This power meter works just like I had hoped. I use it to monitor the power to my trailer's battery charging system and refrigerator. Works great! Fast shipping too. I'm very satisfied."

"I returned another model because it didn't show the generator's frequency in real-time. I have two original Kill-A-Watt units, which are wonderful but require switching screens for information. This unit is less than half the price and shows three parameters at once, making it easy for me to monitor voltage and Hz line frequency on my old HONDA generator."

"I purchased the Suraielec meter and a similar Ketotek meter to compare. Both are easy to use, but the Ketotek has larger buttons and is easier to reset for power usage measurement. The Suraielec requires a small clip to reset, which is a nuisance, so I returned it and ordered a second Ketotek."

"I am so thankful for Amazon offering this product. I had been struggling to find an electric meter box locally right before Christmas. Fortunately, Amazon had exactly what I needed at a very affordable price! The meter box was easy to attach to the side of my house and arrived completely assembled. It's been holding up very well!"

"I found the installation to be straightforward, although I made sure to turn off the power supply to my house first."

"I used this meter box for my single-family home. It arrived on time and was just as described."

"I find it to be a perfect way to keep track of costs while using my space heater."

"Having a lot of high wattage equipment, this device has been invaluable for distributing the load among circuits."

"I appreciate that it remembers settings after a power loss, and the cost calculation feature helps me monitor my tenant's EV charging use effectively."

"I can control the heat tape from my phone anywhere! It shows me electricity usage and lets me input power costs."

"Setting up this device was fairly straightforward. However, I found it unclear where to insert the SD card."

"I replaced my old watt meter with this one because it allows remote monitoring. It worked well on my bench polisher."

"I found the installation pretty straightforward. With just 2 mains and 16 sensors, I had to be selective about the circuits I monitored. I opted for the plug and play ethernet option, and while the sensor wires can look messy, I was able to tidy them up effectively. The app was simple to set up and user-friendly, offering well-organized data and insightful charts that help me track consumption over time."

"I absolutely love this product so much that I purchased a second one to monitor every circuit in my home. Although I recommend hiring a licensed electrician for installation, I found it surprisingly easy myself. Being a tech enthusiast, I enjoy the ability to monitor amperage usage and kilowatt-hours instantly. This has been crucial in realizing the need for an additional kitchen circuit for my microwave, which was pulling more amperage than I anticipated."

"Installing this energy monitor was quite simple, although I would advise hiring a professional if you're inexperienced with electrical work. After installation, connecting to the app was a breeze. While the app could be more user-friendly, it provides valuable information. Overall, it's a great addition if you have a specific need in mind."