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Top 10 Usb Port Voltage Tester of 2020 – Consumer Guide & Reviews

Rank No. #1
DROK-300043 Digital Multimeter USB 2.0, Multifunctional Electrical Tester, Capacity Voltage, Current Power Meter Detector Reader with Dual USB Ports, LED Display, 7 Modes
  • 7-MODE USB MONITOR ---- voltage measuring range DC 3. 20~30. 0v; current measuring range 0. 00~3. 00A (10A max. ); other measuring parameter: capacitance, power going to your phone/battery pack. With 7 mode, one button to operate.
  • MULTIFUCNTION ---- can be used for capacitance checking, capacitance clear, over voltage and under voltage alarm, over-current, and short circuit alarm, easily test the power/quality of the chargers and USB cables.
  • DUAL USB OUTPUT ---- two USB output available, can be used simultaneously. Output I: be used for device charging and data transfer; output II: only for charging mobile phones, tablet PCS and etc. Output I Support QC 2. 0 9V & 12V charging, but don't insert any device in Output II when using QC 2. 0 Charging.
  • DUAL COLOR LED ---- with red and blue dual bright color LED display, easy to monitor the charge voltage and current of digital USB devices to ensure the optimal charge rate.
  • 100% RISK-FREE SATISFACTION ---- DROK offer you 100% risk-free satisfaction to let you buy with confidence.
Rank No. #2
USB 3.0 Power Meter Tester USB load Digital Multimeter Current Tester Voltage Detector DC 30.00V 4.000A Test Speed of Charger Cables QC 2.0/3.0 AP 2.4A (AT34+Load(FREE delivery))
  • Testers are widely used in the quality inspection of 3C digital peripheral products, and are the first choice for digital gamers and electronic enthusiasts.Real-time detection of the state of charge of the appliance, voltage, current, power and other indicators at a glance; Measuring voltage: 3.7V-30.00V; measuring current: 0-4.000A.
  • The AT34 uses a 0.96-inch IPS high-definition color LCD display to display the state of charge of the appliance, voltage, current, capacity, energy, power, equivalent impedance, temperature and other indicators at a glance. 160 degree wide viewing angle, high brightness and long working life. Fast charge recognition, widely compatible: AT34 supports QC2.0, QC3.0, i Phone 2.4A/2.1A/1A/0.5A, Andriod DCP, fast charge protocol identification, let you know the state of charge of the phone.
  • 4-bit accuracy for more accurate measurements; Measure the load equivalent impedance and power; Thermometer function, Celsius and Fahrenheit free switching: Using high-precision thermistor sensor; USB 3.0 interface: Compatible with USB 2.0, support high current test, support USB3.0 interface mobile hard disk and U disk test.
  • Package:1 X USB Meter, 1 X USB load ( 5V , 1A or 2A ) , 1 X Quick Tour. We offer User Manual PDF at the product detail page and could be downloaded if needed, 180-days Warranty.
  • Get Manual from forum.avhzy.com
SaleRank No. #3
MakerHawk USB 3.0 Tester, USB Power Meter, 3.7-30V 0-4A Voltage Tester Multimeter, USB Current Meter Tester, IPS Color Display Voltmeter Ammeter, USB Charger Tester AT34 (1PCS)
  • Guide Video: https://www.youtube.com/watch?v=Alta7jcpgBI . Testers are widely used in the quality inspection of 3C digital peripheral products, and are the first choice for digital gamers and electronic enthusiasts.Real-time detection of the state of charge of the appliance, voltage, current, power and other indicators at a glance; Measuring voltage: 3.7V-30V; measuring current: 0-4A.
  • The AT34 uses a 0.96-inch IPS high-definition color LCD display to display the state of charge of the appliance, voltage, current, capacity, energy, power, equivalent impedance, temperature and other indicators at a glance. 160 degree wide viewing angle, high brightness and long working life. Fast charge recognition, widely compatible: AT24 supports QC2.0, QC3.0, i Phone 2.4A/2.1A/1A/0.5A, Andriod DCP, fast charge protocol identification, let you know the state of charge of the phone.
  • Power-off storage, data is guaranteed: AT34 has power-off storage function, which can store capacity and energy data when the mobile power is cut off, which is convenient for subsequent viewing and convenient for capacity energy measurement of mobile power.Note: Other USB testers that do not have a power-down storage function cannot test capacity and energy.
  • 4-bit accuracy for more accurate measurements; Measure the load equivalent impedance and power; Thermometer function, Celsius and Fahrenheit free switching: Using high-precision thermistor sensor; USB 3.0 interface: Compatible with USB 2.0, support high current test, support USB3.0 interface mobile hard disk and U disk test.
  • Measure the quality of the charger: connect the same load, compare the no-load and the load, the greater the voltage drop, the worse the charger capacity is, the worse the quality; the voltage drop is not obvious or the voltage rises (leisure loss) Compensation function) The better the load capacity of this charger, the better the quality.
Rank No. #4
Klein Tools ET920 USB Power Meter, USB-A and USB-C Digital Meter for Voltage, Current, Capacity, Energy and Resistance
  • 3 to 20V DC; Current: 0.05 to 3A (USB-A); 3 to 20V DC; Current: 0.05 to 5A (USB-C)
  • Continuously monitor up to 1000 hours of voltage, current, capacity/charge delivered, energy, and resistance (calculated)
  • Tests most common standard USB-A or USB-C ports, including Qualcomm Quick Charge ports
  • Store and recall up to 10 readings
  • Voltage and current overload detection
Rank No. #5
Eversame 2 in 1 Type C USB Tester Color Screen LCD Digital Multimeter, USB C Voltage Current Voltmeter Amp Volt Ammeter Detector USB Cable Charger Indicator DC3.6-30V/0-5.1A
  • UPGRADED MULTIFUNCTIONAL USB C POWER METER: Detects the charging status and process of your USB-enabled or type c-enabled devices. Supports QC3.0, QC2.0 and BC1.2. A Must Gadget checks the charging performance (charging speed and quality) of the output wall/car/solar panel chargers and USB charging cables. It can be also used to find the highest current of the Wireless Charger, and test capacity and electric energy of power bank.
  • PROFESSIONAL SAFETY GUARD: Featured with over-voltage protection, over-current protection, under-voltage protection, low energy protection and alarm system. This upgraded USB Type C tester can detect safety and maximally protect the appliances from damaging. It will cut off output automatically and alarm by sound, while it will save data when power off suddenly.
  • MULTIPLE COLOR SCREEN DISPLAY MODES: New upgraded version offers 8 LCD main color screen display interfaces, allowing switching the display interface by pressing the key. With the new interface settings, this instrument can monitor voltage, current, capacity, electric quantity, power, load impedance, D+/D- voltage and other data of USB.
  • WIDE RANGE OF APPLICATION: Thanks to the PD protocol quick charging mode measurement technology, this new multimeter supports the updated iPhone X mobile phone. (Support iphone 8 / 8P / iPhone Xs quick charging, 29W power, 5V3A / 9V3A / 12V2.5A / 15V2A). It also can be applied to test other type C devices, Compatible With Galaxy S10/S9/Note 10 +, ChromeBookPixel, OnePlus and More.
  • EVERSAME PROMISE: We have always believed that a stable and continuously improve product quality. We trust our products and we offer worry-free 18-month. For any reason you are unsatisfied with our product, just feel free to contact support for exchange or refund. WHAT WE PROVIDE: 1X USB Tester. (Note: If the USB Tester doesn’t display any parameters, please insert the small adapter being sent with the package into the side hole on the USB Tester, to trigger the PD Charging Function. )
SaleRank No. #6
USB Power Meter Testers, Electop Upgrade Multi Functional 2 in 1 Type C USB Tester, LCD Digital Multimeter, Voltage,Current, Power Capacity, Temperature, Working Time Detector (Pack with OTG Adapter)
  • Multi Functional Tester: Multiple interfaces (USB input/output, Type-C input/output and Micro USB input),Used to detects the charging status and process of your USB-enabled or type c-enabled devices.Data transfer supported but have limitations,please refer to product description for using details .Supports QC3.0, QC2.0 and BC1.2 ,MTK in different devices. It can be also used to find the highest current of the Wireless Charger, and test capacity and electric energy of power bank.
  • Safety Protection: Featured with Over-voltage protection, Over-current protection, under-voltage protection, low energy protection and alarm system. So, this USB Type C tester can detect safety and maximally protect the appliances from damaging. It will cut off output automatically and alarm by sound, while it will save data when power off suddenly.
  • LCD MULTI-COLOR Display : Upgraded version offers IPS HD 9 LCD main color screen display interfaces, allowing switching the display interface by pressing the key. Support English or Chinese Language show, and individual screen display for more visible enjoyment.
  • Support PD protocol:Thanks to the PD protocol quick charging mode measurement technology, this new multimeter supports the updated iPhone X mobile phone. (Support iphone 8 / 8P / iPhone Xs quick charging ONLY with IOS PD Fast charging adapter and cable). It also can be applied to test other type C devices, such as Samsung Galaxy S9 Plus, Google Chrome BookPixel, OnePlus, HuaWei P9, ect.
  • OTG Adapter for Free : It comes with a OTG adapter,which enables you to expand your USB and Micro USB Function.(convert USB input connection port to Micro port by Insert OTG Adapter).We are always at your disposal for solving problems for you,buy with confidence.
SaleRank No. #7
USB Meter X-DRAGON Digital Multimeter USB 2.0,Multifunctional Electrical Tester Capacity Voltage, Current Power Meter Detector Reader with Dual USB Ports,LED Display,7 Modes[Upgraded]
  • ❤️7 Modes Monitor: The USB monitor can display voltage, current, capacitance and power, press the button to switch among seven different display modes
  • ❤️Measuring Range: Voltage 3.2-15V Current 0-3A Accuracy: +/- 1%
  • ❤️Dual ouput: Output one is used for both charging and data transfer, Output two is for large current fast charging
  • ❤️Display: Simultaneously displaying of Amp and Volt in real-time
  • ❤️Widely used: Perfect for testing how fast a USB cable or USB power charger, such as power bank, solar charger
Rank No. #8
Sun YOBA Mini USB 2.0 Voltage Tester Digital Power Multimeter Multifunctional Electrical Tester Current Power Detector Reader with Dual USB Ports LED Display
  • 【Multifunctional Measurement】It can test current and voltage of phone, mobile power bank etc.USB Power Meter can be connected to the charging adapter, and can also connect the charging cable plug, easy to find digital devices charging problem existed
  • 【Convenient & Smart】With a USB port and micro USB interface, convenient to test devices; high voltage or low voltage will be alarm, LCD screen arrow, the backlight LED will alarm prompts through flash. Press the button LED screen will be light on 30S.
  • 【Accurate & Flexible】 *Including intelligent memory charging capacity data, monitoring and memory measurement data, up to 10 sets of measurement data stored, the data can be a button to clear, the data self-protection is not lost. Press the small circle button and the data will be zero, then you can test next data. *Accuracy: plus or minus 1%, accurate measurement data. Input Voltage: 3V-15V, Voltage Resolution: 0.01V, Test Current: 0.05A-3.50A, Current Resolution: 0.01A, Capacity Range: 0-19999
  • 【Easy to use & Carry】With LCD screen, easy to see the current and voltage of the devices;Portable and easy to carry.
  • 【Test Range】Multimeter can improve the charging efficiency, protect the electronic equipment, perfect measurement for the tablet, cell phone batteries, rechargeable treasure, 5V routers and any other 5V USB digital device operating current, voltage, and battery capacity
SaleRank No. #9
USB Tester UM25C USB Meter Tester,Voltage Current Bluetooth Battery Power Charger Voltmeter Ammeter Multimeter Tester, 1.44 Inch Color LCD Display USB 2.0 Type- C Cable Resistance Load Impedance Mete
  • User manual, PC software installation instruction and PC software and Android APP Download Link: http://www.mediafire.com/folder/q2b8h079hpywq/UM25C Description video : https://www.youtube.com/watch?v=rNDMIFiWq64
  • Via Bluetooth connection, you can use mobile phone APP or PC control the USB tester. PC software support PC window (Win 7 and above) and Phone Android (Android 5.0 and above, support 14 kinds language, chinese, english and Russia .... )
  • Parameter / Useage: USB 2.0 / 1.44 Inch Full-Color LCD Display Tester, 5-digit High Precision; High Resolution; Foreground and background colors are switched alternately , with 64 options to choose; Upgrading USB A Female and Male Port--It can measure input Voltage, current, power, capacity, energy. Load access detection function, after the tester screen puts off, plug in the load and the screen will light up automatically.
  • Support Micro USB or Type C Connector and fast charge mode recognition,It can recognize QC 2.0/3.0,Apple 2.4A/2.1 A/1A/0.5A,Android DCP,etc....Measure wire resistance by Differential pressure method.Gold-plated USB contacts and upgraded USB male female connector. Widened Power Cord make it own 5A high current.
  • Application in varieties of test:PC/Laptop/Desktop Computer/Mobile Phone/Power Bank/Charger/Discharge Load/Car Charger/Cable Impedance Measurement. Can identify the quality of the charger, charging cable, charging treasure, data cable, the true and false mobile power capacity, from then bid farewell to be fooled, bid farewell to fakes!
Rank No. #10
AT34 USB 3.0 Tester Power Meter 30V 4A USB Voltage Digital Multimeter Current Tester Voltmeter Ammeter IPS Color Display Capacity Power
  • Description Video: https://www.youtube.com/watch?v=Alta7jcpgBI . User Manual: http://www.mediafire.com/folder/77ueo252py4vc/AT34. Testers are widely used in the quality inspection of 3C digital peripheral products, and are the first choice for digital gamers and electronic enthusiasts.Real-time detection of the state of charge of the appliance, voltage, current, power and other indicators at a glance; Measuring voltage: 3.7V-30V; measuring current: 0-4A.
  • 4-bit accuracy for more accurate measurements; Measure the load equivalent impedance and power; Thermometer function, Celsius and Fahrenheit free switching: Using high-precision thermistor sensor; USB 3.0 interface: Compatible with USB 2.0, support high current test, support USB3.0 interface mobile hard disk and U disk test.
  • The AT34 uses a 0.96-inch IPS high-definition color LCD display to display the state of charge of the appliance, voltage, current, capacity, energy, power, equivalent impedance, temperature and other indicators at a glance. 160 degree wide viewing angle, high brightness and long working life. Fast charge recognition, widely compatible: AT34 supports QC2.0, QC3.0,for i Phone 2.4A/2.1A/1A/0.5A, for Andriod DCP, fast charge protocol identification, let you know the state of charge of the phone.
  • Power-off storage, data is guaranteed: AT34 has power-off storage function, which can store capacity and energy data when the mobile power is cut off, which is convenient for subsequent viewing and convenient for capacity energy measurement of mobile power.Note: Other USB testers that do not have a power-down storage function cannot test capacity and energy.
  • Measure the quality of the charger: connect the same load, compare the no-load and the load, the greater the voltage drop, the worse the charger capacity is, the worse the quality; the voltage drop is not obvious or the voltage rises (leisure loss) Compensation function) The better the load capacity of this charger, the better the quality.
Rank No. #11
DROK Copper Alligator Clips with Wire Female and Male USB Connector 13.35 Inches Copper Test Leads Crocodile Clamps for Testing Circuit 2 x 18AWG 3-5A
  • This two test leads are well designed with USB port; one with female USB port, the other with male USB.
  • This testing wire with alligator clips will help transmit DC current to other multi-meters or other usage.
  • Alligator clips can be used in conjunction with the wire as test leads and used for light bulb and power adapter, worked with power bank for testing voltmeters, etc.
  • Made for copper wire and well-made PVC and it can pass 3-5A(max) current during your testing work.
  • High performance, lower resistivity and durable, fast and stable, high-speed output current.
Rank No. #12
USB Power Meter USB 3.1 Tester Digital Multimeter Current Tester Voltage Detector Lua Interpreter Integrated DC 26V 6A PD 2.0/3.0 QC 2.0/3.0/4.0 pps Trigge
  • 0-26V 0-6A voltage & current measurement. 128*160 1.77’TFT. 4.5 digits reading for voltage and current. 0.1% maximum gain error for both voltage and current. Capacity/Energy accumulator. PD(with PPS), QC2.0, QC3.0, QC4.0, Huawei SCP, SSCP, FCP, Samsung AFC, VOOC, Super VOOC 65W trigger for charger testing.
  • Powerful PC software: Data logging up to 1000sps. Lua program downloader. VBUS ripple viewer(3.2Msps). PD listener for device diagnosis. Fast-charge trigger and external load module can also be accessed. All functionalities can be activated simultaneously for advanced test requirements.
  • Lua Programmable: Lua interpreter integrated, provided with various APIs, detailed documentations (Look up at point 1). Make access to almost all hardware with your own program. Scripts can be set to run on boot. Internal 12Mbytes memory can be used to store scripts, and can be used as output storage of scripts (Standard file operation supported).
  • Optional Modules: SM-LD-00 programmable electronic load module, can be accessed with the meter itself and the PC software. Constant-current and constant-power mode, load value is digitally adjusted with the meter. 0~26V, 0~6.7A, maximum power of 100W guaranteed in continuous operation.CT3+Load (sm-ld-00) https://amzn.to/2S9PHe5
  • More information:https://www.avhzy.com/html/product-detail/ct3 , Meter UI Manual: https://m.media-amazon.com/images/I/91DA88mt5DL.pdf , PC Software Manual:https://m.media-amazon.com/images/I/91NX6+bf13L.pdf
Rank No. #13
USB Tester UM25C USB Meter Tester,Voltage Current Bluetooth Battery Power Charger Voltmeter Ammeter Multimet, DC 24.000V 5.0000A, Test Speed of Charger Cables, Capacity of Power Bank, QC 2.0 3.0 AVHzY
  • 1.44 Inch USB 2.0 Full-Color LCD Display Tester,5-digit High Precision Display, High Resolution,Foreground and background colors are switched alternately , with 64 options to choose.User manual, PC software installation instruction and PC software and Android APP Download Link: http://www.mediafire.com/folder/q2b8h079hpywq/UM25C Guide Video: www.youtube.com/watch?v=pNtRmlR9Z9w
  • Bluetooth connection, you can use mobile phone APP or PC control the tester PC Software Support PC Win 7 and Above, Phone Only Support Android (Android 5.0 and Above) Support 14 Kinds Language(English, German, Polish ,Chinese and So on )Product comes with Chinese and English help interface.
  • It can measure input Voltage, current, power, capacity, energy.Load access detection function, after the tester screen puts off, plug in the load and the screen will light up automatically.
  • Application in varieties of test:PC/Laptop/Desktop Computer/Mobile Phone/Power Bank/Charger/Discharge Load/Car Charger/Cable Impedance Measurement.
SaleRank No. #14
Jebsens 4.8A 24W Dual USB Car Charger Volt Meter Car Battery Monitor with LED Voltage & Amps Display, for iPhone 7 / 6s / Plus, iPad Pro/Air 2 / Mini, Galaxy S7 / S6 / Edge/Plus, Note 5/4
  • ADVANCED CHARGING TECHNOLOGY: Dual USB Ports pumps out 24W of power charge up to 4.8 amps or 2.4 amps per port. Easily charge your favorite mobile devices including the iPad (max speed), iPhone (max speed), iPod, HTC, Galaxy, Blackberry, MP3 Players, Digital Cameras, PDAs, and Mobile Phones.
  • LED DISPLAY - LED digital luminescence tubes; Monitor the voltage of the vehicle's car battery when not charging any devices. When charging a device, it cycles between device's charging current, and the voltage of the vehicle's car battery. The LEDs are bright enough to read the display without being a distraction while driving.
  • OVER-CHARGE PROTECTION – The mini USB car charger is auto power off when input/output is greater than safety current, protects against over-heat, over-current and over-charging
  • COMPACT DESIGN - One of the industry's smallest USB car chargers, featuring two USB ports and an LED Display make it easy to access after dark.
  • PACKAGE INCLUDES: 1 x Jebsens 4.8A Dual USB Car Charger with LED Display. (Charging Cable NOT included) 1 Year Guarantee provided by Manufacturer. Money Back Guarantee from JebsensDirect. Need a Car Mount? Check out the Jebsens New CD Slot Car Mount (ASIN: B01LWNB10F) - Enjoy hands free driving!
Rank No. #15
USB C Tester,KJ-KayJI 2 in 1 Type C USB Tester Color Screen IPS Digital Multimeter,Voltage,Current,Power,Resistance,Temperature,Capacity Detector,with clip cable Support PD2.0/PD3.0,QC2.0/QC3.0,BC1.2
  • 【Latest Upgraded USB C Power Meter Tester】:Maximum voltage Current 32V/5.1A/150W,The multimeter tester can monitor Voltage,Current,Capacity,Electric Quantity,Power,Temperature,Resistance,Charging Time and other data of the USB or type C Port Devices.A Must Gadget checks the charging performance(charging speed and quality) of the output wall/car/solar panel chargers and USB charging cables.It can be also used test capacity and electric energy of power bank.
  • 【Latest Upgraded IPS Color Display Screen】: New upgraded version offers 8 IPS main color screen display interfaces,allowing switching the display interface by pressing the key.With the new interface settings,this instrument can monitor voltage,current,capacity,electric quantity,power,load impedance,D/D- voltage and other data of USB.Click the button to switch in multiple interfaces.(Supports flipping the screen to 180 degree, and 3 kinds of personalized interfaces!)
  • 【Professional Safety Guard】: Featured with over-voltage protection, over-current protection, under-voltage protection, low energy protection and alarm system(The protection voltage and current can be adjusted in the background). This upgraded USB Type C tester can detect safety and maximally protect the appliances from damaging. It will cut off output automatically and alarm by sound, while it will save data when power off suddenly.
  • 【WIDE RANGE OF APPLICATION】: The USB tester comes with A OTG adapter, supports PD3.0/PD2.0, QC3.0/QC2.0,BC1.2 and USB A or USB C port,supports the updated iPhone 11 Pro mobile phone.(Support iphone 11/X/iPhone Xs quick charging, 29W power, 5V3A / 9V3A / 12V2.5A / 15V2A).Compatible with new MacBook Pro, MacBook, iMac, iMac Pro, Dell XPS, Acer Aspire, HP Spectre, ASUE Zenbook , Lenovo Thinkpad, Eluktronics, Razer Blade Stealth, Chromebook, Microsoft Surface Pro and more Type C devices and chargers
  • 【Important Tips and 18 Month Warranty Service]】:When your device does not have a USB port, you can use an alligator clip to clamp the positive and negative poles and convert to USB before testing. When your USB-C device cannot be tested, please insert a small adapter, the small adapter will start the tester. If you receive a defective USB tester or if you have any questions, please contact us first to obtain a valid warranty replacement service for replacement or other assistance.
Rank No. #16
LCD USB Current Voltage Doctor Charger Capacity Tester Meter Power Bank
  • Display: Simultaneously display Amp and Volt in real-time
  • Measuring Range: Voltage 3-9V, Current 0-3A, Accuracy: +/- 1%
  • Memory function: The working time and Capacity have Memory function when power off
  • Reset: Press and hold the RESET button for 3 seconds to reset
  • Widely used: Perfect for testing phone, power bank, solar charger, car charger, tablet, computer, note book and so on
Rank No. #17
Eversame USB Digital Power Meter Tester Multimeter Current and Voltage Monitor, DC 5.1A 30V Amp Voltage Power Meter, Test Speed of Chargers, Cables, Capacity of Power Banks-Black
  • MULTIFUNCTIONAL USB TESTER: USB Meter Tester is mainly used to detect USB charging current, voltage, discharge capacity, quantity of electric charge, power, timing and so on. Meanwhile multimeter USB detector can be applied to the Power Capacity Storage and Over/Low Voltage-current Protection. It allows you to find the charging problem of the USB cables, wall chargers, and car charges more easily.
  • BUILT-IN MORE SAFETY: Each USB meter tester has been built-in circuit with containing CW3002D chip for accelerating Large Current Fast Charging. Plus the Interior Smart System is designed to detect safety. The multimeter tester also supports QC 2.0/3.0 high voltage test, with the function of cutting off automatically when it’s fully charged, to protect your valuable devices effectively.
  • PREMIUM LCD DISPLAY: Crafted from high-grade LCD monitor with low power consumption feature, bright and clear enough to monitor the parameters on the screen. Comes with three various display modes for your choosing. Ideally be broadly applicable to test capacity and electric energy of power bank; test the maximum output current of the charger; and test charging speed and quality of data cable and charging cable.
  • WIDE TESTING RANGE & SIMPLE OPERATION:Input/Output Voltage: DC3-30V, Current Range: 0-5.1A. This portable USB tester is easy to carry and enables you to put it in your bag or your pocket whenever you go.
  • PACKAGE: 1X Multimeter USB Tester. 100% SATISFACTION WARRANTY: We stand behind all of our products 100%.Every item includes worry-free 12-Month with considerate customer service. Eversame always bear in mind that your satisfaction is our priority. For any reason you are unsatisfied with our product at any time, just feel free contact support for exchange or refund. Our customer service team are here and ready to assist you with any questions.
SaleRank No. #18
Diymore USB Charger Doctor Current Voltage Charging Detector Battery Voltmeter Ammeter Multimeter USB Tester Mobile Power Panel Monitor Gauge DC LED Display
  • The tester uses a new generation of power four semi~ double loop integral converter IC , with a precision bandgap reference , range accuracy , high precision , stable and reliable performance , strong anti~interference ability.
  • High temperature can be used for measuring USB powered or power consumption of the interface , mobile phone charger , U disk and other products.
  • Can easily measure the operating current of the output voltage of the USB port and equipment.
  • Smallsize , no power , and other ancillary equipment, plug and play also detect USB charger output voltage and current are standard suitable for factories, Laboratory and users.
  • USB powered devices can be used to measure air , voltage loads , USB terminal equipment working voltage and current .
Rank No. #19
Musou USB Safety Tester,USB Digital Power Meter Tester Multimeter Current and Voltage Monitor DC 5.1A 30V Amp Voltage Power Meter, Test Speed of Chargers, Cables, Capacity of Power Banks,Black
  • MULTIFUNCTIONAL USB TESTER: USB Meter Tester is mainly used to detect USB charging current, voltage, discharge capacity, quantity of electric charge, power, timing and so on. It supports QC2.0/QC3.0,BC1.2,Apple Iphone 2.4A and other protocol quick charging styles of cellphone and chargers.
  • UILT-IN MORE SAFETY: Real-time monitoring of charge data, USB monitor will automatically cut off when the device is full charged, makes it controllable and more secure when charging, effectively protect your device.
  • PREMIUM LCD DISPLAY: to monitor the parameters on the screen. Comes with three various display modes for your choosing. It allows you to find the charging problem of the USB cables, wall chargers, and car charges more easily.
  • WIDE TESTING RANGE & SIMPLE OPERATION:Input/Output Voltage: DC3-30V, Current Range: 0-5.1A. Symmetrical and reversible connector,plug and play,easy to carry
  • PACKAGE: 1X Multimeter USB Tester,One year warranty by Musou
Rank No. #20
MakerHawk USB Power Meter UM25C USB Voltmeter Bluetooth Type C USB Tester Meter USB Voltage Meter and Current Tester 1.44inch 5A Color LCD Displaeter QC 2.0 3.0y Power Tester Multim
  • 1.44 Inch USB 2.0 Full-Color LCD Display Tester, 5-digit High Precision Display, High Resolution, Foreground and Background colors are switched alternately, with 64 options to choose. User manual, PC software installation instruction and PC software and Android APP Download Link: http://www.mediafire.com/folder/q2b8h079hpywq/UM25C. Guide Video: https://www.youtube.com/watch?v=IzY8ZJKOtnM, www.youtube.com/watch?v=pNtRmlR9Z9w
  • Bluetooth connection, you can use mobile phone APP or PC control the tester PC Software Support PC Win 7 and Above, Phone Only Support Android(Android 5.0 and above). Support 14 Kinds Language(English, German, Polish, Chinese and so on ). Product comes with Chinese and English help interface.
  • It can measure input voltage, current, power, capacity, energy. Load access detection function, after the tester screen puts off, plug in the load and the screen will light up automatically.
  • Support Micro USB or Type C Connector and fast charge mode recognition, it can recognize QC 2.0/3.0, iPhone 2.4A/2.1 A/1A/0.5A, Android DCP. Measure wire resistance by differential pressure method. Gold-plated USB contacts and upgraded USB male female connector. Widened Power Cord make it own 5A high current.
  • Application in varieties of test: PC/Laptop/Desktop Computer/Mobile Phone/Power Bank/Charger/Discharge Load/Car Charger/Cable Impedance Measurement.

Last update on 2020-11-01 / Affiliate links / Images from Amazon Product Advertising API

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