USB 3.0 Multimeter Voltage Current Tester for Phone and Tablet

Vista frontal del multímetro USB 3.0 probador voltaje corriente con pantalla OLED

Multímetro USB 3.0 probador voltaje corriente conectado a dispositivo móvil

USB 3.0 Multimeter Voltage Current Tester for Phone and Tablet

Name: USB 3.0 Multimeter Voltage Current Tester for Phone and Tablet
Brand: satkit
SKU: N030103-5-1-USB-3-0-Voltage-Current
Price: 9.84 EUR
Availability: InStock

Brand: satkit

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9.84€

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The USB 3.0 voltage and current tester multimeter is a multifunctional device designed to accurately measure essential electrical parameters in devices with a USB port. This 5-in-1 meter panel is compatible with computers, mobile phone chargers, car chargers, power banks and other USB devices, making real-time diagnosis and monitoring easier.

Main features:

Voltage measurement range: DC 3.70~13.00V with an accuracy of ± (0,2% + 1 word).
Current measurement range: DC 0.000~3.000A with accuracy of ± (0,8% + 3 words).
Capacity measurement: 0~99999mAh with 1mAh resolution.
Power measurement: 0~39.00W.
Energy measurement: 0~999Wh with 1mWh resolution.
0.91-inch OLED display: shows clear, updated data twice per second.
Static consumption: approximately 10mA, efficient for extended use.

Highlighted functions:

Mode selection: lets you choose between direct mode, fast charge and disconnected mode to suit different needs.
Overvoltage and undervoltage alarm: visual alert with flashing arrows when the voltage exceeds 5,3V or drops below 4,7V.
Current zero calibration: corrects errors in low-current measurements for greater accuracy.
Screen rotation: makes viewing easier by adjusting the orientation with a long press of the key.
Screen off: allows you to turn off the display to save power.
Capacity unit switch: changes the display between mAh and mWh according to preference.
Compatible with USB 3.0 and USB 2.0, ensuring versatility across different devices.

Typical uses:

This multimeter is ideal for technicians and users who need to measure and monitor voltage, current and capacity in USB devices such as mobile phones, tablets, laptops and power banks. It allows you to check charging quality, detect possible faults in cables or chargers, and optimise the performance of electronic devices.

Compatibility:

Works with any device that uses USB 2.0 or 3.0 ports, including wall chargers, car chargers, power banks and computers, making it a versatile tool for electronic diagnosis and maintenance.

Package contents:

1 x USB tester (USB voltmeter/ammeter/power/capacity meter).

This USB 3.0 voltage and current tester multimeter is an essential tool for anyone looking for precision and functionality when measuring electrical parameters in USB devices.

Accurate DC 3.70~13.00V voltage measurement with ±(0,2% + 1 word)
DC 0.000~3.000A current measurement with ±(0,8% + 3 words) accuracy
Capacity measurement up to 99999mAh and power up to 39.00W
0.91" OLED display with data refresh 2 times/second
Overvoltage and undervoltage alarm functions
Compatible with USB 3.0 and USB 2.0 for maximum versatility
Selectable modes: direct, fast charge and disconnected
Current zero calibration for accurate low-current measurements
Screen rotation and screen off for convenience and power saving
Ideal for phones, tablets, PCs and power banks

Customer Questions & Answers

What are the main functions offered by this 5-in-1 USB multimeter compared with other conventional USB testers?

This 5-in-1 USB multimeter measures voltage (3.70–13.00V), current (0.000–3.000A), power, accumulated capacity (up to 99.999mAh) and energy (up to 999Wh). It also integrates visual alarms for overvoltage and undervoltage, test mode selection, and a high-visibility OLED display. Compared with simpler USB testers, it stands out for showing multiple parameters simultaneously and covering higher ranges, making detailed analysis of loads and adapters easier.

What types of devices and USB ports is this tester compatible with, and are there any limitations on charging or data speed?

The tester is compatible with any device, charger or power bank that uses standard USB Type-A ports in USB 2.0 and 3.0 versions, within the supported voltage range (3.70–13.00V). It does not interfere with data communication, but it may limit the maximum charging speed if the device draws more than 3A, which is its measurement limit. It is not suitable for testing USB Type-C ports or proprietary protocols without specific adapters.

What accuracy do the voltage and current measurements offer? How does this affect low-current tests or highly demanding precision work?

The meter offers an accuracy of ±0.2% + 1 digit for voltage and ±0.8% + 3 digits for current. At very low current ranges, the relative error may increase, especially due to the tester’s own consumption (approx. 10mA). For accurate measurements below 100mA, the uncertainty will therefore be greater and additional calibration or higher-resolution instruments may be required.

Is any periodic maintenance needed to ensure the device remains reliable? What happens if it is exposed to overloads?

This type of instrument does not require regular maintenance beyond avoiding exposure to moisture or dust. It must not be used outside the specified voltage (13.00V) or current (3.000A) limits, as it does not include fuses or advanced electronic protection; it would suffer irreversible damage in the event of a significant overload. It is recommended to check and recalibrate the current zero reading if any drift is detected.

What is the warranty policy and availability of spare parts or after-sales service for this USB multimeter?

Most of these multimeters include a limited 1-year warranty against manufacturing defects, subject to variation depending on the distributor. Due to the integrated design of the components, there are no interchangeable spare parts; faults usually require a full replacement of the unit. For after-sales support and specific calibration, it is recommended to contact the supplier directly.

Which devices is this USB multimeter compatible with?

It is compatible with any device that has a USB 2.0 or USB 3.0 port, including phones, tablets, computers and power banks.

What parameters can this USB tester measure?

It can measure voltage, current, capacity, power and energy in USB devices.

How does the overvoltage and undervoltage alarm work?

When the voltage exceeds 5,3V or drops below 4,7V, the device shows a flashing arrow to alert the user.

Can the meter be calibrated to improve accuracy?

Yes, the device allows current zero calibration to correct errors in low-current measurements.

Does this multimeter work with USB 3.0 and USB 2.0?

Yes, it is compatible with both USB standards to ensure use across different devices.