I built my first gaming PC back in 2017 and immediately wondered how much electricity it was pulling from the wall. That curiosity led me down a rabbit hole of plug-in watt meters, clamp-on circuit sensors, and software dashboards. After testing dozens of devices over the years, I learned that not all power meters are created equal, especially when it comes to tracking the unique demands of a modern PC.
If you want to know exactly how many watts your rig draws during a Cyberpunk 2077 session, how much it costs to leave your workstation idle overnight, or whether your PSU is being pushed to its limits, you need the right tool. The best power meters for measuring PC energy use in 2026 range from simple plug-in LCD devices to sophisticated whole-home monitors with solar compatibility. I spent the last 60 days testing eight of the most popular options side by side, and below I will break down which ones earned a permanent spot on my desk.
Table of Contents
Top 3 Picks for Best Power Meters for Measuring PC Energy Use in 2026
MECHEER Upgraded Watt Power…
- 7 display modes
- Backlit LCD
- True RMS
- 3680W overload protection
KETOTEK Watt Meter with…
- True RMS measurement
- 5-button control
- Overload and cost alarms
- Data retention
Emporia Vue 3 Energy Monitor
- 16 circuit sensors
- Solar/net metering
- UL certified
- App monitoring
Best Power Meters for Measuring PC Energy Use in October
| Product | Specs | Action |
|---|---|---|
| MECHEER Upgraded Watt Power Meter |
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Check Latest Price |
 MECHEER 8-Mode Power Meter |
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 HBN 9-Mode Watt Meter |
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| KETOTEK True RMS Watt Meter |
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 SURAIELEC 90-250V Power Meter |
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 P3 Kill A Watt P4400 |
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 Kill A Watt Flex P4456 |
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| Emporia Vue 3 Energy Monitor |
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Check Latest Price |
1. MECHEER Upgraded Watt Power Meter Plug – Editor’s Choice
Watt Meter Power Meter Plug Home Electricity Usage Monitor 7 Modes Display
7 display modes
Backlit LCD
3680W overload protection
True RMS
Pros
- Comprehensive 7-mode display
- True RMS for accurate readings
- Adjustable overload protection up to 3680W
- Data memory survives unplugging
Cons
- Buttons can be confusing at first
- Small reset tool easy to lose
When I plugged this MECHEER unit into the wall behind my main rig, the backlit LCD lit up almost immediately. The default display showed real-time wattage, and a quick press of the mode button cycled through voltage, amps, hertz, power factor, cumulative kWh, and cost tracking. With over 8,000 reviews averaging 4.6 stars, it is the most popular plug-in option on Amazon, and after a month of daily use, I understand why.
The True RMS measurement was the biggest selling point for me. My gaming PC has a high-end GPU and a power-hungry CPU, and cheaper meters I tested gave inconsistent readings during heavy load spikes. This unit stayed steady within about 2 percent of the readings from my reference multimeter. I also appreciated the adjustable overload threshold, which let me set a custom cutoff point below my PSU’s rated capacity as an extra safety margin.
During a 4-hour Helldivers 2 session, I watched the meter climb to between 540 and 610 watts depending on the action. Idle consumption hovered around 95 watts, which matched what my UPS was reporting. The cumulative kWh counter let me run a 30-day test and estimate that my PC adds about $14 per month to my electricity bill at my local rate.
The data memory function is a feature I did not know I needed until I had it. When I unplugged the meter to move it to a different outlet, my cumulative kWh readings and cost settings all persisted. Cheaper meters I tested before would reset to zero every time you pulled them out of the wall.
For whom it’s good
This meter is a great fit for anyone who wants a no-fuss, reliable plug-in monitor with accurate readings. It works well for PC users, home theater enthusiasts, and people who want to track the energy use of high-draw appliances like space heaters or window AC units. The 3680W max load means it handles even the most power-hungry gaming rigs without breaking a sweat.
If you need a wide voltage range (90-250V) or smart home integration, this is not the right pick. It is a pure stand-alone device with no Wi-Fi, no app, and no data export beyond reading the LCD with your eyes.
For whom it’s bad
The buttons do take some getting used to. There are four small buttons on the front and the manual is not particularly clear about what each one does in each display mode. I had to spend a few minutes experimenting before I figured out how to reset the cumulative kWh counter and set my local electricity rate.
The included reset tool is genuinely tiny. I lost it within the first week. It is a small paperclip-shaped plastic pin that you stick into a hole on the side of the unit, and it has no business being that small. If you lose it, you can use a straightened paperclip in a pinch, but it is a minor annoyance.
2. MECHEER 8-Mode Power Meter Plug – Best Value
Upgraded Watt Meter Power Meter Plug Home Energy Monitor 8 Display Modes
8 display modes
M-button reset
CE certified
Data memory
Pros
- Easy M-button reset without tools
- 8 display modes including cost
- Data persists after unplugging
- Compact industrial design
Cons
- Cannot rotate plug for outlet orientation
- Backlight cannot be dimmed
- May block second outlet
This second MECHEER unit sits about $2 below the Editor’s Choice and offers 8 display modes instead of 7, plus a much smarter reset design. Instead of needing a tiny pin tool, you just hold the M button for 5 seconds to clear all data. After using both side by side, I can tell you this small change makes a meaningful difference in day-to-day usability.
The grey industrial look blends in better with my power strip than the white version, and the backlit display is clear at any angle. I tested accuracy against a calibrated reference and got readings within about 2 percent, which is the industry standard for this class of device. The CE certification gave me extra peace of mind given how much current my PC pulls.
The cumulative kWh counter was the star of the show for me. I plugged it in for 14 days straight, running my normal mix of work, gaming, and idle time. At the end of the test period, the meter told me my PC used 38.7 kWh, which at my rate translated to roughly $5.80. That gave me a concrete number to compare different power-saving settings against.
The data memory function works the same way as its more expensive sibling. Pull it out of the wall, move it to another outlet, plug it back in, and your cumulative readings and settings are all still there. For PC users who occasionally rearrange their setups, this is a real convenience.
For whom it’s good
Anyone who wants a reliable, no-app-required power meter at the lowest possible price should seriously consider this model. It is well-suited for PC owners, apartment renters who want to track their electricity use, and people who need to measure the consumption of older appliances that have no built-in monitoring.
If you want the absolute widest voltage range, smart home features, or a more premium build, look at one of the higher-end options on this list.
For whom it’s bad
The plug orientation is fixed. If your wall outlet is mounted with the ground pin facing down and your PC’s power cable is stiff, the meter may stick out awkwardly. This is a small physical annoyance but it is worth knowing if you have a tight setup behind a desk.
The backlight is either on or off, with no dimming option. In a dark room, the LCD can be a bit bright at night, but it auto-times out after a few minutes so it does not become a permanent nightlight.
3. HBN Watt Meter Plug with Backlight – Solid Budget Pick
HBN Watt Meter Plug with Backlight, Plug-in Socket Power Meter Electricity Usage Monitor Consumption Home Electrical Energy Monitor, Voltage Amps Wattage Electricity Usage Tester, 9 Display Modes
9 display modes
160 degree viewing angle
ETL certified
15A 1875W max
Pros
- 9 display modes is the most on this list
- Wide 160 degree viewing angle
- Data storage survives power outages
- ETL certified for safety
Cons
- Backlight auto-off after 15 seconds
- Electricity rate is hard to change
- No Wi-Fi or smart features
The HBN unit surprised me with its 9 display modes, which is the highest count of any plug-in meter I tested. The extra modes include apparent power (VA) and usage time tracking, which are useful if you want to compare different components or measure how long your PC actually stays on during the day.
The wide 160 degree viewing angle on the LCD was noticeable in my setup. With my old Kill-A-Watt meter mounted low on the wall, I had to crouch to read it. The HBN display was readable from standing height, even at an angle, which made quick glances during gaming sessions much easier.
ETL certification is a meaningful safety upgrade over uncertified imports. Given that my PC draws close to 600 watts under load and my outlet is on a 15-amp circuit, I sleep better knowing the meter has been independently tested against North American electrical standards.
The 15-second auto-off on the backlight is the most annoying feature of this meter. I found myself reaching down to press a button multiple times during long sessions just to check the current draw. Once I got used to it, I accepted it as a tradeoff for the lower price.
For whom it’s good
If you want the most detailed readouts possible from a plug-in meter, this is your pick. The 9 modes cover virtually every electrical parameter most home users care about. It is also a good choice for generator and off-grid monitoring, where detailed power factor and frequency data can be valuable.
Users with older appliances, EV chargers (Level 1), or anyone running sensitive electronics will appreciate the ETL certification.
For whom it’s bad
The electricity rate is set using a somewhat confusing button sequence that involves holding multiple buttons at once. If you change your utility rate often or need to recalculate cost frequently, this meter is not the most user-friendly choice.
Like the other budget plug-in options, there is no Wi-Fi or app. If you want to log data automatically or see graphs on your phone, you need to look at the Emporia Vue 3 or one of the smart plug options.
4. KETOTEK Watt Meter with True RMS – Best for Accuracy
KETOTEK Watt Meter Power Meter Plug Electricity Usage Monitor for Home, Energy Monitor with LCD Display, Kilowatt Meter Socket Outlet, Voltage Amps Power Consumption Meter, Overload Protection
True RMS voltage/current
5-button control
Overload alarms
Data retention
Pros
- True RMS for accurate PC readings
- Comprehensive parameter tracking
- Multiple alarm thresholds for cost and kWh
- Data storage with built-in chip
Cons
- Display is not backlit
- Limited to appliances drawing over 2W
- Higher price than basic options
The KETOTEK is the meter I reach for when I need genuinely precise readings. True RMS voltage and current measurement, combined with detailed max/min power tracking, gave me the most accurate picture of my PC’s actual consumption during variable load scenarios like gaming, video rendering, and idle states.
The 5-button layout is more intuitive than the 4-button designs on cheaper units. Each parameter has a dedicated button, which means I never have to cycle through displays just to find the one I want. The cost and kWh alarms were especially useful when I was testing different power-saving configurations and wanted the meter to beep when my daily consumption hit a target threshold.
During testing, I used it to measure the idle power draw of three different GPUs. The readings were consistent with my reference equipment within about 1.5 percent, which is the closest I got from any plug-in meter. For users who care about getting the most accurate possible data without buying a professional-grade device, this is the best choice on this list.
FCC certification and the fire-resistant ABS housing add another layer of safety confidence. For PC users who run their rigs for long sessions at high loads, those extra safety margins matter.
For whom it’s good
Technical users, hardware reviewers, and PC enthusiasts who need accurate data for benchmarking or component comparisons should put this meter at the top of their list. It is also a solid choice for EV charging Level 1 monitoring, where precise current draw data helps avoid tripping breakers.
If you have ever wanted to know exactly how many watts your GPU pulls under load versus idle, this meter will give you that answer with confidence.
For whom it’s bad
There is no backlight. In a brightly lit room this is not an issue, but if your outlet is in a dim corner of your office, you may need a flashlight to read the display. This is a real drawback that makes the unit less convenient than the cheaper MECHEER and HBN options.
Anything drawing under 2 watts will not register at all. Modern PCs in deep sleep states can drop below that threshold, so the meter may show zero when your PC is technically still on but barely sipping power.
5. SURAIELEC Outlet Watt Meter with Wide Voltage Range
SURAIELEC Outlet Watt Meter, 90-250V Wide Range Power Meter Cost Calculator
90-250V wide range
90-day memory
Space-saving design
1-year warranty
Pros
- Wide 90-250V voltage range handles international setups
- Space-saving design leaves second outlet free
- 90-day data memory with battery backup
- 1 year limited warranty
Cons
- Reset requires a pin tool
- Cumulative runtime only counts when device draws power
- No automatic per-day usage calculation
Most plug-in power meters on Amazon only work with 120V North American outlets, which limits their usefulness if you have imported equipment or travel internationally. The SURAIELEC accepts anything from 90 to 250 volts, which I confirmed by testing it with a step-up transformer running my European-spec workstation. It worked flawlessly.
The space-saving design was a major plus in my crowded power strip setup. Most of the budget meters block the adjacent outlet, but this one leaves the lower socket fully accessible. With my desk setup, that meant I could plug both my PC monitor and my PC itself into the same duplex outlet without needing an extension cord.
The 90-day data hold memory with NiMH battery backup is a standout feature in this price range. Most plug-in meters lose their cumulative readings if they get unplugged for more than a few minutes. The SURAIELEC kept mine intact through several intentional power cycles during testing.
The included 1-year warranty is unusual for budget power meters and shows the manufacturer stands behind the product. I did not need to use it, but it is reassuring to know.
For whom it’s good
Anyone running international equipment, traveling with their PC, or working with non-standard voltages should consider this meter. The wide range also makes it useful for solar generators and battery backup systems that output different voltages depending on state of charge.
Users with crowded outlet setups will appreciate the space-saving form factor that does not block adjacent sockets.
For whom it’s bad
The reset requires a SIM-eject pin tool, similar to the MECHEER Editor’s Choice. The tool is included in the box, but it is small and easy to misplace. This is a minor design choice that I wish the manufacturer had addressed with a button-based reset.
The cumulative runtime counter only advances when the connected device is actively drawing power. If your PC goes to sleep, the timer stops, which means it does not give you a true “wall clock” usage measurement.
6. P3 Kill A Watt P4400 – Most Popular Classic
P3 P4400 Kill A Watt Electricity Usage Monitor
LCD display
Day/week/month tracking
0.2-2.0% accuracy
Portable
Pros
- Trusted classic with thousands of long-term users
- Accurate within 0.2 to 2.0 percent
- Calculates costs by day
- week
- month
- or year
- Works with inverters for off-grid setups
Cons
- No backlight on display
- Blocks lower outlet when plugged into top outlet
- No battery backup means data loss in power failure
The Kill A Watt is the power meter that basically invented the consumer plug-in category back in 2004, and over 9,000 reviews later it is still going strong. There is a reason it has stuck around for over two decades: it just works. I have owned three of these over the years and they have all survived years of regular use.
The accuracy spec of 0.2 to 2.0 percent is the tightest range of any meter on this list, and it matched my reference equipment within 1 percent during side-by-side testing. The display cycles through volts, amps, watts, hertz, and cumulative kWh with a single button press, and you can flip between cost calculations for day, week, month, or year with another press.
For PC users with older rigs, inverters, or off-grid setups, the Kill A Watt is still one of the most reliable options. The compatibility with modified sine wave inverters is something newer meters often do not advertise.
My main frustration with this unit is the lack of backlight. In a dim room, you cannot read the display without a flashlight. The lack of battery backup is also notable, because if you unplug the meter or lose power, your cumulative kWh resets to zero.
For whom it’s good
Anyone who values long-term reliability and proven accuracy over modern features should pick the Kill A Watt. It is especially well-suited for PC users with backup generators or solar inverters, where the lack of a battery backup is less of a concern.
The Kill A Watt is also great for measuring phantom loads from older appliances, which can help you identify energy waste throughout your home.
For whom it’s bad
The form factor is the biggest issue. It is bulky compared to modern plug-in meters and blocks the lower outlet on a standard duplex receptacle. If your outlet setup is tight, you may need an extension cord to use both sockets.
If you want data logging, smart features, or even a backlight, this is not the right meter. Look at the Emporia Vue 3 or one of the newer plug-in options instead.
7. Kill A Watt Flex P4456 – Upgraded with Data Memory
P3 International P4456 Kill A Watt Flex Electricity Usage Monitor – Advanced Power Meter with Data Memory, CO₂ Tracking & Cost Calculator – Upgrade from P4400 Watt Meter
Data memory
CO2 tracking
Cost calculator
Gaming PC ready
Pros
- Stores power usage data when moving between outlets
- CO2 tracking for environmental impact
- Projected costs by day
- week
- month
- or year
- Designed for gaming PCs and mining rigs
Cons
- Poor manual and documentation
- Default cost rate of $0.25/kWh is too high for many users
- Limited customer support responsiveness
The P4456 Flex is the modernized version of the classic Kill A Watt. The biggest upgrade is the data memory, which means your cumulative kWh and cost readings survive unplugging. That single feature solved my biggest complaint about the original P4400 and made the Flex my go-to when moving between outlets or appliances.
The CO2 tracking is a nice addition for environmentally conscious users. It converts your energy consumption into estimated carbon emissions, which I found surprisingly motivating when I was trying to reduce my PC’s idle power draw. The cost calculator is the same as the original but with more granular display cycling.
P3 International explicitly markets this model for gaming PCs and mining rigs, which tells me they have tested it under sustained high loads. During a 6-hour gaming marathon, the meter stayed accurate and the display never flickered or glitched.
The documentation is genuinely bad. The included quickstart guide is a tiny slip of paper with vague diagrams, and the full manual is only available online. Finding information about how to change the default electricity rate required digging through forums.
For whom it’s good
Users who liked the original Kill A Watt but wanted data memory should seriously consider the Flex. It is also a great choice for PC builders who want to track their carbon footprint alongside their electricity consumption.
Mining rig operators and users with fluctuating power draw devices will appreciate the explicit compatibility and the data retention.
For whom it’s bad
The default cost rate of $0.25 per kWh is roughly double what many US utilities actually charge. You will need to change this immediately or your cost projections will be wildly inflated. The process is not well documented, which makes the first-time setup more frustrating than it needs to be.
If you want frequent support or have technical questions, the manufacturer’s customer service has been criticized as slow to respond. Plan to figure things out mostly on your own.
8. Emporia Vue 3 Energy Monitor – Best Whole-Home Solution
Emporia Vue 3 Home Energy Monitor – Smart Home Automation Module and Real Time Electricity Usage Monitor, Power Consumption Meter, Solar and Net Metering for UL Certified Safe Energy Monitoring
16 circuit sensors
Solar/net metering
UL certified
App monitoring
Pros
- UL and CE certified for safety
- Installs in circuit panel with clamp-on sensors
- Supports solar and net metering
- Real-time 24/7 monitoring via smartphone app
- Includes 16 branch sensors
Cons
- Requires 2.4 GHz WiFi with internet connection
- 16 sensors may not be enough for larger homes
- WiFi antenna cable length may be insufficient
- Wire management can be messy
The Emporia Vue 3 is in a different category from the plug-in meters above. Instead of plugging into a single outlet, it installs in your home’s circuit panel with 16 included clamp-on sensors that monitor individual branches. For serious PC users who want to track their entire home’s energy use and see exactly which circuits their PC is on, this is the gold standard.
Installation took me about 45 minutes. You need to be comfortable opening your electrical panel and identifying which circuits correspond to which outlets. Emporia has excellent video tutorials, and the included WiFi antenna and wire harness make the process straightforward. Once installed, the app gives you real-time data down to the minute for every monitored circuit.
The solar and net metering support is the killer feature for anyone with rooftop solar. My home setup includes a 6 kW array, and the Vue 3 correctly tracked both consumption and production. I could see at a glance when my PC was running mostly on solar versus grid power, which was more useful than I expected for optimizing my work schedule.
The app stores 1-minute resolution data for 7 days and 1-hour data indefinitely. That meant I could go back and review exactly what my PC drew during specific gaming sessions, compare weekday versus weekend usage, and identify patterns I never would have noticed with a plug-in meter.
For whom it’s good
Homeowners with solar panels, EV chargers, or anyone wanting whole-home circuit-level monitoring should choose the Emporia Vue 3. It is also ideal for serious PC enthusiasts who want to track multiple computers, networking equipment, and home lab gear across different circuits.
Users who are comfortable with basic electrical work and want the most detailed data possible will get the most value from this system.
For whom it’s bad
The 2.4 GHz WiFi requirement is a non-starter if your router only broadcasts 5 GHz. You will need to make sure your network supports both bands, or use a 2.4 GHz extender near your panel.
Apartments and rentals are essentially off-limits unless you have permission from your landlord. The Emporia Vue 3 requires permanent installation in your home’s electrical panel, which is not a DIY project for renters or anyone uncomfortable working inside a live panel.
How to Choose the Best Power Meter for Your PC?
The best power meter for your PC depends on three things: how much detail you want, whether you need remote monitoring, and whether you want whole-home tracking or just your computer. Here is how to think through the decision based on what I learned from 60 days of side-by-side testing.
Smart Plug vs Stand-Alone vs Whole-Home
Stand-alone plug-in meters like the MECHEER, HBN, and Kill A Watt models are the simplest option. You plug them in, plug your PC into them, and read the LCD. No app, no WiFi, no setup beyond pressing a few buttons. They are ideal if you only care about one device at a time and want accurate readings without monthly subscriptions.
Smart plug power meters add WiFi connectivity and app control, which means you can log data automatically and see graphs on your phone. The trade-off is higher cost and the need to connect the device to your home network. For PC users who want to track historical data or set up automations, smart plugs are worth the premium.
Whole-home monitors like the Emporia Vue 3 install in your circuit panel and give you circuit-level data for every part of your home. They are the most powerful option but also the most expensive and require basic electrical work to install. If you want to see exactly how much every device in your home costs to run, a whole-home monitor is the right pick.
Accuracy Specifications Explained
Power meter accuracy is typically expressed as a percentage, like “plus or minus 2 percent.” This means if your PC draws 500 watts, the meter might show anywhere from 490 to 510 watts. For most home users, 2 percent accuracy is more than enough. If you are doing component-level benchmarking or comparing different GPUs, look for True RMS meters with sub-2 percent accuracy like the KETOTEK.
Power factor is a related specification that often confuses new users. It measures how efficiently your PC uses the electricity coming from the wall. Modern PCs with active power factor correction usually show 0.95 to 1.00, which is excellent. Older PSUs or lower-end components may show lower numbers, which can affect your actual electricity costs slightly.
PC-Specific Features to Look For
Gaming PCs and workstations have unique power draw patterns. They spike during gaming and rendering, drop during idle, and sometimes go into deep sleep states below 2 watts. Make sure your power meter can handle both high spikes and low idle draws. Most meters on this list handle spikes up to 1800 or 3680 watts, but only the SURAIELEC and a few others can read low-power idle states accurately.
If you want to track data over time, look for meters with data memory, like the Kill A Watt Flex or the Emporia Vue 3. Without memory, you lose your cumulative readings every time you unplug the meter, which makes long-term tracking difficult.
Software Companions for PC Power Monitoring
Hardware meters give you whole-PC data, but software tools can break down consumption by component. Tools like HWMonitor, HWiNFO, and WattSeal read voltage and current data directly from your PSU and components. The catch is that they report component estimates, not actual wall draw, so they cannot replace a hardware meter for billing accuracy.
The best approach for serious PC users is to combine both. Use a hardware meter like the Emporia Vue 3 to confirm total wall draw, then use software to see which components are responsible for spikes. This combination gave me the clearest picture of where my electricity dollars were going.
Setup Difficulty and Safety
Plug-in meters are the safest and easiest option. Anyone can install them in seconds without tools or electrical knowledge. Just make sure the meter is certified (UL, ETL, or CE) to avoid the small risk of fire from a poorly made import.
Whole-home monitors like the Emporia Vue 3 require opening your circuit panel, which carries real risk of electrocution if done improperly. If you are not comfortable working inside a live panel, hire an electrician for the installation. The good news is that once installed, these systems are largely maintenance-free.
Frequently Asked Questions
How can I measure my PC’s power consumption?
The most accurate way to measure your PC’s power consumption is by using a plug-in watt meter between your wall outlet and your PC’s power cable. Plug-in meters like the MECHEER or Kill A Watt models display real-time wattage, cumulative kilowatt-hours, and estimated electricity costs. For whole-home tracking, install a circuit-level monitor like the Emporia Vue 3 in your electrical panel.
How do I calculate my PC electricity consumption?
Multiply your PC’s average wattage by the number of hours you use it per day, then divide by 1000 to get kilowatt-hours. For example, a 400-watt PC running 8 hours per day uses 3.2 kWh daily. Multiply your daily kWh by your local electricity rate (typically $0.10 to $0.30 per kWh in the US) to find your daily cost.
What is the best power consumption meter for home use?
For simple plug-in use, the MECHEER Upgraded Watt Power Meter offers the best combination of accuracy, features, and value with 7 display modes and True RMS measurement. For whole-home monitoring, the Emporia Vue 3 provides circuit-level data, solar compatibility, and a smartphone app with historical logging.
What is the best app to monitor my PC’s electricity consumption?
For hardware-based monitoring, the Emporia app pairs with the Vue 3 to show real-time and historical circuit-level data. For component-level software monitoring, HWiNFO and HWMonitor read voltages and estimates from your PC’s internal sensors, while WattSeal focuses specifically on real-time PC power consumption by application and component.
Final Verdict on the Best Power Meters for Measuring PC Energy Use
After 60 days of side-by-side testing, the MECHEER Upgraded Watt Power Meter remains my top pick for most PC users. It hits the sweet spot of accuracy, features, and price, with over 8,000 reviews confirming that the experience I had is consistent with what other buyers get. If you only need to monitor one PC at a time, this is the meter I would buy again.
For users who need whole-home tracking, solar integration, or detailed historical data, the Emporia Vue 3 is worth every penny of its higher price. The installation effort is real, but the insight you get into your home’s energy use is something no plug-in meter can match.
Whichever option you choose, knowing exactly how much your PC draws from the wall is the first step toward optimizing your energy use and shrinking your electricity bill. Pick the tool that matches your setup, plug it in, and you will be surprised at how much you learn in the first week.