10 Best Power Meter [2023 UPDATED RANKINGS]

Features :

• 【Overload Protection】Overload warning displayed on LCD, when the whole power exceeds the rated power 1650W of monitor, LCD will display “OVERLOAD” with booming noise to warn the user, and automatically disconnect the power.
• 【Upgraded Digital LCD Display】 The power consumption monitor with a large clear backlit LCD display, full wide view clear visible, make it easy to read and record the data, especially in the darkness.
• 【Electricity Usage Monitor】With the help of this Power Meter Monitor, You can make certain how much your standby appliances cost, what the power factor is, whether the appliances are really charged, and how long have your appliances been charged.
• 【Wide Usage】This electricity usage monitor measures various parameters: power (W), energy (kWh), volts, amps, hertz, power factor and maximum power (W), time, days – kWh is vital as this is what your electricity bills are based on!
• 【Lifetime Warranty】 Fayleeko offers a 100% satisfaction guaranteed or your money back. If you have any question with the power meter, please feel free to contact us for details on how to set up and use the device.

Features :

• 【Multi-function power monitor】: Our electric usage monitor can monitor the power (W), electricity(kWh), voltage(V), frequency(Hz), current(A), power factor(PF), unit price($/kWh), total cost($) of your appliances. By switching 8 display modes, you can easily know the various parameters while the appliance is working. The “electricity” mode can calculate and display how much power your appliance uses. And the “total cost” mode will show how much electricity bill it cost in cumulative time.
• 【Overload protection】: When the loading power of the appliance is over the default overload threshold 1800W, the whole display with backlight and the word “OVERLOAD” will keep flashing to warn the users. Please turn off the appliance for safety concern.
• 【Premium Material】: The whole body of our energy meter is made of high-quality ABS material. It makes our home electricity usage monitor more durable, fireproof and anti-drop. The standard US socket and plug is suitable for all US standard appliances.
• 【Backlight Display】: With white backlight and black words, the LCD display of our home power monitor can display the data clearer and help you to read the data easier no matter day or night. The backlight will only lights up when the device is connected to AC power. If no button is pressed, the backlight turns off automatically after 10 minutes. You can also press the “UP” button to turn off the backlight manually, and press any button to turn on backlight again.
• 【Easy to reset】: No reset tool needed, our appliance power usage meter is easy to reset. You can press the “M” button for 5 seconds directly to reset the device. After reset, all cumulative data (electricity quantity, cost) will be cleared, and all settings will be restored to factory settings
• 【Data Memory Function】: The watt meter plug in will record your power consumption data when you remove it from socket, or remove appliances from the electricity monitor. All setting data and cumulative data(electricity quantity, cost, unit price) will be saved. You can directly see the last data when you use it next time(NOT including current, voltage, power, power factors). This function can also automatically save the data when there is a sudden power failure.
• 【100% SATISFACTION】: Our electrical meter sockets is ideal for monitoring the electricity usage of your home appliances, controlling your power consumption, and saving your money. Your best choice for voltage meter, wattage meter, current meter and electric meter. If you have any concerns with the power consumption meter you received, you can contact us to get 100% satisfaction.

Features :

• It has alarm function and can be set to alarm when the voltage, current, power or temperature exceeds alarm settings.
• The total power consumption and historical records can be cleared or do the factory restore in the system setting page.
• There are 9 timers, two are advanced timers, which can be set to power on or power off the power supply in the specific time on “no repeated”, “everyday”, “working day” or “weekend”, and other 7 timers are general timers can be set to open or close the power supply on the certain period of time in one day
• There are three main display pages: the overview page, the one shot electrical page and real-time electrical parameters page, the default page is overview page, users can press “ ”key to switch different display page
• Automatic record historical data, which can be review in the form of a list or chart, and can be stored for up to 30 years

Features :

• Electricity Usage Monitor: VIVOSUN power energy meter has various monitoring parameters, which can easily measure Power (W), Energy (kWh), Volts, Amps, Hertz, Power Factor and Maximum Power (W), time, days, and calculate how much electricity bill it cost in cumulative time
• Upgraded Backlight Version:  Large clear LCD display features a blue backlight, ensuring the display is easy to read even in dim light conditions: Backlight only light when the meter is connected to AC power and cannot light when using battery
• Data Memory Function: Come with 3.6V built-in rechargeable battery backup, the plug in power meter will record your power consumption data even if you remove it from socket; And you can continue reading data after you re-plug it; This feature is great for dealing with sudden power failure
• 3680W overload Instruction: Featuring overload protection, our energy usage meter will notify you if a unit is drawing more electricity than a circuit can safely handle
• Easy To Use: To set the amount charged per kWh in your house, you should plug your electronic appliance with the meter on the wall, and then it will start calculating the amount when the appliance works

Features :

• [New upgrade]: The product supports two-way insertion detection, increases the current direction to indicate the direction, with a 1.44-inch large LCD screen, 4 operation buttons and 5 connection ports. The plug with gold-plated USB contacts has a strong coating to prevent scratches, stains and damage
• 【Wide range of applications】: It can measure all kinds of USB chargers/PC/laptop/desktop computer/mobile phone/power bank/charger/discharge load/car charger/cable. Support Type-C interface full digital compatible PD protocol/Qualcomm QC3.0/4.0 protocol One table is compatible with multiple protocols, fast charge supports PD QC2.0 QC3.0/4.0 MTK and other protocols
• [New reminder function]: Temperature alarm: over 45°C, the temperature display will flash; Voltage alarm: less than 3.8V or greater than 30V, the voltage display will flash; Current alarm: greater than 3A, the current display will flash
• [Flexible color display interface]: Supports 360-degree rotation of the screen to meet reading at any angle. You can rotate the screen by pressing the button corresponding to the horizontal menu bar. When plugged into various digital devices at any angle, positive readings can also be made, making the measurement more convenient
• [Powerful after-sales service team]: As long as you have any questions about the product, we will solve your problem as soon as we receive your email. Your satisfactory purchase experience is our greatest hope! How to email us? Please click “MakerHawk-US” and click “Ask a Question” to email us! Looking forward to your consultation!
• [Note] : When PD power is not connected to the fast charge device, the power is not supplied by default. After the TYPE-C PD is inserted, the test screen is not on. 1. Flip the TYPE-C connector 2. Our built-in TYPE-C interface is used for connection and TypeC interface charger is used. According to the protocol, no load is connected and no power is supplied by default

Features :

• Converts AC to DC: features AC to DC power supply Variable linear/ regulated design. Provides convenient and reliable AC-to-DC Power conversion W/ constant source of DC voltage. Works w/ cellular phones, CB radio, scanner, ham radio, etc
• Usb and Screw-Type terminals: This workbench linear variable power supply features dual USB charge port and universal screw connection terminals compatible w/ a wide range of device/equipment. Used to test device/equipment operation and performance
• Plug-in operation: The simple plug-in operation provides a constant source of DC voltage, allowing for quick and consistent power conversion. Switch-activated power control eliminates the need for an external battery or additional power source
• Short-circuit protection: Equipped w/ built-in electronic overload and short circuit protection to ensure the safety of the operator and any connected electronics. Has rugged and durable housing construction safe for benchtop or desktop Placement
• Amp gauge and volt meter display: this DC bench power supply is equipped with rotary control for the adjustable power supply DC and analogue gauge Amperage and voltage Metered display for easy operation

Features :

• 【DIN Rail Mounting】The energy monitor is small size, light weight, with good reliability and easy installation. 35mm standard DIN-rail mounting in accordance with standard DIN EN50022. Six widths (12.5mm modulus) in accordance with DIN43880.
• 【5+1 LED Digital Display】Standard configuration 5+1(99999.1KWh) digital display. Double color LED of kilowatt meter indicates the power status (green) and the energy pulse (red).
• 【Easy to Contact】The standard configuration pulse output is passive (polar) and the remote pulse output can be selected as passive (non-polar). KWH meter is easy to contact with various AMR systems and conforms to the standards IEC 62053-31 and DIN43864.
• 【One-way measurement】One-way measurement of single-phase two – wire active energy consumption. This has nothing to do with the direction of the load current. Comply with IEC 62053-21.
• 【Two Wiring Methods】The din rail energy meter has direct connection operation, two wiring methods. Standard configuration S type wiring, U type wiring can be selected. Extend the terminal cover to protect the use of the security.

Features :

• 【Updated Designed USB Tester】FNIRSI FNB48P USB tester has a 1.77-inch full-color ultra-wide viewing angle TFT LCD display, integrated USB-A, Micro-USB, Type-C interface. It is a high-reliability, high-safety USB voltage andcurrent detection meter and a mobile communication terminal fast chargingtrigger. Gravity sensor, automatically switch the display direction.
• 【Multifunction USB Digital Tester】FNB48P uses external 16-bit ADC, PD protocol physical chip. It can be used to measure the power supply or power consumption of products such as USB interfaces, mobile phone chargers, and U disks. FNB48P USB tester can monitor the voltage, current, power, resistance, capacity, temperature, D+/D- voltage etc, it can be used to test the fast charging protocol of chargers.
• 【Fast Charge Protocol Trigger Detection】FNB48P supports trigger detection of various fast charging protocols, QC2.0/QC3.0 trigger, FCP/SCP trigger, AFC trigger, PD2.0/3.0 trigger, VOOC/WARP trigger, Super VOOC 1.0/2.0 trigger. The above protocols all support automatic monitoring. MTK-PE automatic detection. Support QC2.O->PD2.0 protocol conversion.
• 【Parameter Detection and Recording】The highest six-digit display of voltage, current and power, the highest resolution is 0.00001 (V/A/W). 10 sets of switchable capacity, power and time statistics. 1 set of voltage and current curve records, maximum support 9 hours. Support low-speed waveform (voltage, current, D+/D-) drawing, 2sps->100sps sampling rate. Support high-speed ripple (voltage, AC coupling)drawing, up to 3.2M sps sampling rate.
• 【Other detection functions】FNB48P also has many functions that other USB testers do not have. The internal resistance measurement of the wire by the differential pressure method. E-Marker Cable chip reading. DASH Cable data reading. Record of startup time. Onboard temperature measurement. PD monitor. Analog DASH cable.
• ☆☆☆In order to respond to environmental protection policies and reduce paper waste, FNB48P does not come with paper instructions. You can refer to the method on the package to download the electronic version of the manual, the latest version of firmware, host computer, APP, etc.

Features :

• USB Color Display Tester can monitor Voltage, Current, Capacity, Electric Quanity, Power,Temperature,Load Impedance, D+/D- Voltage, Charging Time and other data of USB, and supports Qualcomm QC3.0 compatible QC2.0, Bc1.2, and Apple 2.4A and other protocol quick charging voltage ranges, support OTG fucntion.8192 Pixel TFT Color Display ,Two in one measurement of USB and Type C.Timed charging sound reminder and full charge sound reminder.When the power is > 0.5W, the time will be calculated!
• 1.USB-C male head replacement cost of copper pin contact plug better, tighter current data more reliable. 2.The screen 180 degrees flip display settings function, to adapt to some chargers using inverted display as a positive display. 3.the OTG protocol of Type-C can open the OTG digital function by inserting a random embedded Android switch head in the upper left corner of Android line.
• 4.The interface settings such as overvoltage, low voltage, overcurrent, backlight time, etc., and switch to the corresponding interface at the short button at the front desk, set up by adding double or three strokes. 5.The built-in PD protocol can open the Type-C interface with the PD protocol’s intelligent charger unloaded power output display, so as to facilitate aging and testing. 6.The PD protocol quick charging mode measurement.
• 7. the built-in PD protocol can open the Type-C interface with the PD protocol’s intelligent charger unloaded power output display, so as to facilitate aging and testing. 8.the PD protocol quick charging mode measurement that supports the updated apple X mobile phone. (support iphone 8 / 8P / apple X / MacBook quick charging, 29W power, 5V3A / 9V3A / 12V2.5A / 15V2A)
• Note: 1. This is no communication version. 2. PC software support PC window(Win 7 and above) and Android Phone(Android 5.0 and above, support 12 kinds language(Chinese, English, Russia and so on), When it is connected to the Type-c charger alone, it will not be displayed if the device is not connected. The Type-c interface cannot be displayed if it is connected to the PD power supply alone. It needs to be connected to the mobile phone charger for normal output

Features :

• No user/operator instructions or data sheets.Find the download data by yourself, please make sure you consider whether you know the operation before buying.Size: 68x42x14mm, LTC1871 IC with External MOSFET.
• Conversion Efficiency: Up to 96%. Low input voltage or a large difference between input and output voltage will degrade the current capacity and efficiency.
• Boost voltage to a stable regulated output. Useful for a wide range of applications, such as powering 5V USB devices from a 3.7V lithium cell, powering higher powered electronics from a 12V battery, and a wide range of automotive and electronic projects. Constant voltage regulation, not for raw LEDs.
• Button to switch measurement of the input or output voltage, and LED indicates the current measurement of the input or output voltage; The nixie tube can be turned off by another button. Mentioned states are able to be memorized, is not lost even if the power is disconnected. (On-board marked “IN” LED is turned on, the nixie tube display input voltage value, “OUT” LED bright display is the output voltage value).
• Output voltage must be greater than input voltage, do not apply reverse polarity voltage, voltmeter works only when input is >= 4V.