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Voltage Meters
  • Mini USB Charger Doctor Current Voltage Charging Detector USB Mobile Power Current and Voltmeter Ammeter Voltage Charger Tester
  • Mini USB Charger Doctor Current Voltage Charging Detector USB Mobile Power Current and Voltmeter Ammeter Voltage Charger Tester
  • Mini USB Charger Doctor Current Voltage Charging Detector USB Mobile Power Current and Voltmeter Ammeter Voltage Charger Tester
  • Mini USB Charger Doctor Current Voltage Charging Detector USB Mobile Power Current and Voltmeter Ammeter Voltage Charger Tester
  • Mini USB Charger Doctor Current Voltage Charging Detector USB Mobile Power Current and Voltmeter Ammeter Voltage Charger Tester
  • Mini USB Charger Doctor Current Voltage Charging Detector USB Mobile Power Current and Voltmeter Ammeter Voltage Charger Tester
Mini USB Charger Doctor Current Voltage Charging Detector USB Mobile Power Current and Voltmeter Ammeter Voltage Charger Tester
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Mini USB Charger Doctor Current Voltage Charging Detector USB Mobile Power Current and Voltmeter Ammeter Voltage Charger Tester

  • 10 - 39 Pieces
    $1.27
  • 40 - 69 Pieces
    $1.17
  • 70 - 99 Pieces
    $1.07
  • >= 100 Pieces
    $0.97

Customization:

Customized packaging（Min.Order: 10000 pieces）
Customized logo（Min.Order: 10000 pieces）
View product details

Mini USB Charger Doctor Current Voltage Charging Detector USB Mobile Power Current and Voltmeter Ammeter Voltage Charger Tester

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • USB Power Measurement: Accurately measures voltage, current, and power output of USB chargers and devices with ±1% to ±2% accuracy classes.
  • Diagnostic Transparency: Features a transparent blue casing for visible internal components, enabling educational use or real-time diagnostics of electrical parameters.

Key features

  • 1. Transparent Blue Casing for Visible Internal Components

    • With its transparent blue casing, you can easily inspect internal components for educational or diagnostic insights, unlike opaque models that hide internal workings.

  • 2. Clear Digital Display with Adjustable Backlight

    • With a clear digital display and adjustable red/blue backlight, you can read precise measurements effortlessly in any lighting condition, surpassing devices without backlight functionality.

  • 3. ±1% Accuracy for Laboratory-Grade Precision

    • With ±1% accuracy, you can achieve laboratory-grade precision in voltage/current readings, outperforming traditional ±2% models*

  • 4. Compact Design for Versatile On-the-Go Use

    • With a compact, portable design, you can troubleshoot USB power issues on-the-go for home devices or verify commercial charger outputs in professional settings, unlike bulkier alternatives.

  • 5. Professional-Grade Measurement Standards Compliance

    • With an accuracy class meeting professional measurement standards, you can trust reliable results for both personal and industrial applications*

Product details

Mini USB Charger Doctor Current Voltage Charging Detector USB Mobile Power Current and Voltmeter Ammeter Voltage Charger Tester

The Mini USB Charger Doctor is a portable, transparent USB power meter designed for precise voltage, current, and power measurements. With a sleek blue casing and digital display, it offers real-time monitoring of USB port performance, ideal for troubleshooting chargers, verifying power outputs, or educational demonstrations.

Technical specifications

FeatureSpecificationBenefit
Accuracy Class±1%, ±2%Ensures reliable measurements for critical applications
Display TypeDigitalClear, easy-to-read numerical outputs
Backlight ColorRed, BlueAdjustable visibility in low-light conditions
MaterialTransparent Blue PlasticReveals internal components for educational use
Port TypeUSB-ACompatible with standard USB devices
Display ColorRed, BlueCustomizable interface for user preference

Customization guide

Adjustable backlight and display colors to match workspace requirements. Transparent casing allows customization of internal component visibility for specialized diagnostic or educational needs.

Get inspired

Whether you’re a hobbyist verifying charger outputs or an educator demonstrating electrical principles, the Mini USB Charger Doctor simplifies power analysis with its compact design and intuitive interface.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Accuracy±2%±1.5%±1%
Measurement Range0-5V/3A0-12V/5A0-24V/10A
DurabilityIP30IP54IP67

Supplier's note

  1. Technical Breakthroughs:

    • Precision: The Pro Model’s ±1% accuracy exceeds industry standards, enabling lab-grade measurements.
    • Visibility: The transparent casing allows real-time observation of internal circuitry, aiding educational use.
    • Portability: Compact design with USB compatibility ensures field-ready troubleshooting.

  2. Optimal Version Selection:

    • General Users: Base Model (±2% accuracy) suffices for basic charger testing.
    • Professionals: Advanced Model (±1.5% accuracy, IP54) suits fieldwork with moderate environmental exposure.
    • Engineers/Researchers: Pro Model (±1%, IP67) delivers lab-grade precision and waterproof durability for industrial settings.

With the Pro Model’s ±1% accuracy, you can ensure precise calibration in high-stakes applications. Pair its IP67 rating with rugged environments to maintain reliability in harsh conditions. The transparent design, when combined with real-time data, creates an ideal tool for teaching electronics fundamentals.

Frequently asked questions

  • Which USB voltage meter model is best for precise charging diagnostics (±1% vs ±2% accuracy)?

  • How do I clean and maintain my portable USB power meter’s display?

  • What materials make the Mini USB Charger Doctor safer than metal-based testers?

  • Can I customize the backlight color for bulk orders of USB voltage testers?

  • Is the Mini USB Charger Doctor certified for commercial use?

  • Does the digital display stay visible in low-light conditions?

  • Which USB power meter is best for travel or small offices?

  • Why does this voltage tester have a transparent casing compared to others?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Industry Standard USB VoltmeterBasic office/home testingAccuracy ±3% (IEC 61587), non-backlit displayAffordable, sufficient for simple tasksLow accuracy (±3%), hard to read in dim light
Basic USB Voltmeter (Competitor)Hobbyist troubleshootingAccuracy ±2.5%, monochrome displayLightweight, budget-friendlyNo backlight, limited compatibility with USB-C
Our Base ModelHome use, casual diagnosticsAccuracy ±2% (IEC 61587), dual-color backlight (red/blue), digital display20% more accurate than industry standard ▲, visibility in low-light ▲No transparency, lacks advanced features like data logging
Our Advanced ModelProfessional testing, educationAccuracy ±1% (IEC 61587), transparent casing ▲, blue backlight, USB-C supportHighest accuracy in class ▲, educational transparency (visible internal components), USB-C compatibility ▲Higher cost, bulkier than basic models
Smart USB Tester (Competitor)Field technicians needing data loggingAccuracy ±2%, built-in data logging, no transparencyData storage for audits, portableLower accuracy than our Advanced model (±2% vs ±1%), no educational features
Industrial-grade MeterHeavy-duty environments (factories)Accuracy ±1%, rugged casing, IP54 ratingDurable for harsh conditions, high accuracy ▲Bulky design, 3x heavier than portable models, no USB-C support

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The comparison data is based on manufacturer information and industry standards. Actual results may vary depending on individual use cases. It is advisable to verify details with the supplier for the most accurate information.