It’s not that easy to choose the right keweisi usb since there’s a ton of things you need to consider first. Some of the factors we paid attention to in our evaluation when reviewing the top keweisi usb on the market. Through our research, weve looked through catalogues to pick out the very best for you. Through our comparison table, in-detail reviews of each product, were going to reveal the name of our best keweisi usb on the marketbut dont skip to the end!
Best keweisi usb
1. 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
Feature
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 doesnt 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. )
2. HiLetgo LCD USB Current Voltage Doctor Charger Capacity Tester Meter Power Bank
Feature
Display: Simultaneously display Amp and Volt in real-timeMeasuring 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
3. 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)
Feature
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 HD9 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 protocolThanks 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,just place an order.
4. KEWEISI 4V-20V 0-3A USB Charger Power Battery Capacity Tester Voltage Current Meter
Feature
KEWEISI 4V-9V 0-3A USB Charger Power Detector BatteryCapacity Tester Voltage Current MeterIt can measure the USB-powered devices empty and easy to use and practical.
Compact and easy to carry, no additional power supply, plug and play.
It can easily measure the output voltage of the USB port and the device operating current or load voltage.
Detect any USB charger such as PC USB, home charger, car charger.
5. DROK USB Tester, USB-A 2.0 Digital Multimeter Dual USB Output Ports PD QC 3.0 Protocol with Color LED Display, Battery Charger Power Monitor, 7 Modes Capacity Voltage Current Power Display Voltmeter Ammeter for Laptop Power bank Phone Solar Panel
Feature
*7-MODE USB MONITOR* With 7 different modes, DROK USB tester can be used to measure voltage, amperage, capacitance, power going to your phone/battery pack. One button operation, simple and handy.*DUAL COLOR LED* Our USB charger tester Red and Blue color dual LED display, which is bright and easy to monitor the charge voltage and current of your digital USB devices to ensure the optimal charge rate.
*DUAL USB OUTPUT* There are two USB output available which can be used simultaneously. Output I can be used for device charging and data transfer, while output II is only for charging your 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.
*MULTIFUNCTION* Our multiple USB Detector 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.
*100% RISK-FREE SATISFACTION GUARANTEE* We offer you 100% risk-free satisfaction guarantee to let you buy with confidence.
6. 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
Feature
Guide Video: 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.
7. Diymore USB Charger Doctor Current Voltage Charging Detector Battery Voltmeter Ammeter Multimeter USB Tester Mobile Power Panel Monitor Gauge DC LED Display
Feature
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 .
8. QiCheng&LYS 5A/9V LED Display Multi Tester Dual USB Output Current Detector for Phone Charger, Power Bank.
Feature
Dual Color Current and Voltage Meter for USB interface Simultaneously displaying of Amp and Volt in real-timeBest Tools to Check Solar Panel Charger USB Wall Charger Power Bank Performance and Lightning Cable Micro USB Cable Quality
DUAL USB OUTPUT : There are two USB outputs available which can be used simultaneously.
Measuring Range: Voltage 3.0 ~ 9V Current 0 ~ 3A Accuracy: +/- 1%
100% risk-free satisfaction guarantee - With this guarantee, you can buy with confidence. So hurry to get this amazing USB digital Multimeter to test your USB cables, wall chargers, car charger.
9. USB C Tester,KJ-KayJI 2 in 1 Type C USB Tester Color Screen IPS Digital Multimeter(2021),Voltage,Current,Power,Temperature,Capacity Detector,with Clip Cable Support PD2.0/PD3.0,QC2.0/QC3.0,BC1.2
Feature
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!)
Test Power Bank CapacityBefore testing the power Bank,please fully charge the power bank,insert the tester and double-click to clear the data,then connect the load or mobile phone (continuous discharge is required).ensure that the discharge voltage is 5V or 9V.(mAh is multiplied by 1.35 when discharge voltage 5V, and mAh is multiplied by 2.45 when discharge voltage is 9V, which is equal to the exact capacity of the battery of the power bank.)
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.
10. Charger Doctor Digital Multimeter USB Tester Current Voltage Meter Detector Battery Monitor with Dual Outputs for Solar Panel Chargers Cables &Other USB Devices Troubleshooting Tools and Gadgets
Feature
A simple little diagnostic tool.Functions well to monitor battery charging status. Shows volts supplied and amps drawn. Answered a few questions of your own as to why some devices charged better than othersGreat little digital multimeter for testing voltage/amps output and power draw for usb-driven devices. Easy to read, helps identify which chargers put out the most charging current.This does do the trick for trouble shooting
This foolproof usb meter has been a real benefit in sorting phones, cables and wall warts adapters into how well they are working for each of these apple devices.Are they capable of supplying adequate power
A very handy USB power monitor to have around for checking both Vdc and the current a USB device would draw with re-charging and go to zero when fully charged
Unlike other USB multimeter, which displays voltage and current in alternate mode and you have to wait for the other mode. This device displays both voltage and current simultaneously!
