Top 10 Best digital power meter in 2026

Main highlights

• •VERSATILE FUNCTIONALITY: Measures AC/DC voltage up to 600V, 10A DC current, 2MΩ resistance; additional features include continuity, diode test and battery test
• •LEAD-ALERT PROTECTION: LEDs on the meter illuminate to indicate proper test lead placement, enhancing accuracy and safety during measurements
• •BACKLIT DISPLAY: LCD shows clear readings in low-light conditions for enhanced visibility
• •BATTERY TEST: Battery test mode can be used for checking if batteries are working
• •CONVENIENT FEATURES: Test lead holders on the back of the meter, kickstand and optional magnetic hanger (Cat. Nos. 69445 or 69417) for hands-free operation
• •DURABLE CONSTRUCTION: Built to withstand a 6.6-Foot (2 m) drop, for use in basic and controlled electromagnetic environments such as residential, business and light-industrial locations
• •COMPLETE PACKAGE: Includes test leads with CAT III/CAT IV safety caps, instructions, and 2 x AAA batteries

Main highlights

• •Various Monitoring Parameters: The power meter plug can monitor the power (W), energy (kWh), volts, amps, hertz, power factor, cost, minimum and maximum power (W), cumulative days and time of your appliances. By switching 7 display modes, you can easily know the various parameters while the appliance is working. The home energy monitor can also calculate and display how much power your appliance uses and how much electricity bill it cost in cumulative time.
• •Upgraded LCD display: With large screen size 2.36 inch x 1.85 inch, clearer monitor backlit, our electrical usage monitor can display the data clearer and more visible no matter day or night. 180°full wide viewing angles is great for reading and recording the data in any angles. No need to stand on the front of the display and bend over to read the numbers.
• •Adjustable Backlight Time: Our upgraded watt meter has 5 options of backlight time. The default backlight time duration is 10 minutes(bL-0). If you want to change the backlight time, you can press and hold "UP" and "DOWN" button at the same time to enter backlight time setting, then press "UP" and "DOWN" to select the backlight time (bL-0 =10 minutes, bL-1=1 hour, bL-2=4 hours, bL-3=8 hours, bL-4=always on), finally press the "COST" to save the backlight time settings.
• •Overload protection: When the power of the appliance exceeds the overload power, the LCD will display “OVERLOAD” to warn the user. All the buttons will quit working and can only be workable when you lower or remove the load power. The default overload power is 3680W and is adjustable from 0 to 3680W. In general, you need to set the overload power to 1800W before using. Just press the "function" button for more than 3 seconds to enter the setting.
• •Data Memory Function: The wattage meter will record your power consumption data when you remove it from socket, or remove appliances from the electricity monitor. You can directly see the last data when you use it next time. This function can also automatically save the data when there is a sudden power failure.
• •Monitor Your Energy Usage：Our watt meter power analyzer lets you track electricity consumption and manage power usage to help save on bills. It works as a voltage, kilowatt, current, and electricity meter. If you have any questions about your meter socket, feel free to contact us.

Main highlights

• •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 long lasting, 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.

Main highlights

• •VERSATILE USB TESTING: Test voltage from 3 to 20V DC and current from 0.05 to 3A (USB-A) and current from 0.05 to 5A (USB-C), covering most common standard USB ports, including Qualcomm Quick Charge ports
• •EXTENSIVE MONITORING: Continuously monitor voltage, current, capacity/charge delivered, energy, and resistance (calculated) for up to 1000 hours, providing comprehensive data insights
• •CONVENIENT DATA STORAGE: Store and recall up to 10 readings, allowing easy access to previous measurements for comparison and analysis
• •OVERLOAD DETECTION: Detect voltage and current overload, ensuring the safety and protection of your devices and power sources during testing
• •HIGH-RESOLUTION LCD: The hi-resolution LCD provides clear visibility of measurements, even in environments with low ambient lighting, ensuring easy reading of data
• •EASY SETUP: Simply connect the device in line between the source being measured and the power source for seamless and accurate measurements
• •RUGGED DESIGN: Durable, pocket-sized and light weight design with 6.6 ft. (2 m) drop protection stands up to jobsite demands

Main highlights

• •✓ Backlit LCD Display: The watt meter features an upgraded backlit LCD display with a 160° wide viewing angle, providing clear and distinct data readings from any angle, day or night. (Note: To conserve energy, the backlight will automatically turn off after 15 seconds of continuous use.)
• •✓ 9 Types of Data Display: This energy meter plug accurately monitors a wide range of electrical parameters, including power (W), apparent power (VA), energy consumption (kWh), usage time (hours), power frequency (Hz), power factor (PF), voltage (V), current (A), and electricity cost. The user-friendly interface allows you to easily read and navigate through 9 types of data with a single button.
• •✓ Save Money and Energy: By toggling through the 9 display modes, you can gain insights into various operational parameters of your devices. The home energy monitor also calculates and displays the electricity consumption and cost over time, helping you save on your electricity bills by monitoring and managing energy usage.
• •✓ Data Storage: The plug-in electricity meter stores all non-real-time data, ensuring no information is lost in the event of a sudden power outage. If data exceeds the screen’s maximum display range, the screen will flash as a reminder. Pressing and holding the reset button for 3 seconds will reset the cumulative data to zero.
• •✓ Safe to Use: Rated voltage 125VAC, 60Hz, 15A maximum 1875W resistor and tungsten wire, 1/2HP. Clean and tidy interface, very simple to use.

Main highlights

• •The electric energy meter can simultaneously monitor and display voltage, current, active energy, electric energy, frequency and power factor. The use of split current transformers makes installation more convenient.
• •Large-screen LCD digital display with a full viewing angle of 180°. One-button control: backlight on/off, reset energy, preset power alarm limits.
• •Overload alarm function, when the preset value is exceeded, the backlight and power supply will flash at the same time to give an alarm. You can preset power limits yourself.
• •Automatic data storage function: when the power supply is suddenly cut off, the last test data will be automatically stored. Don't worry about data loss due to sudden power failure.
• •Wide range of application scenarios, suitable for power monitoring and management in household, commercial and industrial fields.

Main highlights

Main highlights

Main highlights

• •Specifications: Input voltage :DC 3-35V, output voltage :DC 5-45V, input current :5A(peak), voltage display range: 5-30V (input voltage below 4.5V will not be displayed), voltage display error :±0.1V
• •Instruction: The module is powered on (4.5-40V), the input indicator is on, and the module works normally. Adjust the blue potentiometer knob and check the output voltage with a multimeter until it meets the requirements. If the output voltage of the module cannot be adjusted, that is, it is always equal to the input voltage, please rotate the potentiometer counterclockwise for a few turns, you can adjust the voltage normally.
• •Note: The input and output adopts screw terminal design, easy to connect and disconnect. There is a radiator on board to ensure better heat dissipation. Using USB interface and 2.5A large current output, resistance can be recognized, while charging multiple mobile phones. This is a booster module, so the output voltage should be higher than the input voltage. The peak output current is less than 5A
• •Widely used: Ideal DC to DC booster power module for electrical equipment, digital products, etc. It can also be used as a power source for a laptop or a voltage regulator for solar panels.
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