Description: The USB Current Voltage Ammeter Tester is a compact, portable device designed for measuring and displaying both current and voltage in USB devices. It allows users to monitor the performance of USB power supplies, chargers, or other devices that use USB interfaces, making it ideal for DIY electronics, mobile phone charging, power banks, and other USB-powered projects. The device displays both voltage and current in real time, switching between the two automatically, offering clear insights into the power consumption and voltage levels.
This device does not require any external power source and is directly powered through the USB interface. It supports a wide measuring range, from DC 3V to 9V and up to 5A of current, making it suitable for testing a variety of USB devices and ensuring their efficiency and safety.
Specifications:
Specification
Details
Measuring Range
DC 3V to 9V / 0 to 3A (up to 5A)
Display Type
Voltage and current display in turn
Interface
USB2.0, USB3.0
Output Ports
2 (for testing or powering devices)
Weight
0.025 kg
Power Supply
Powered via USB interface
Working Temperature
-10°C to +50°C
Measurement Precision
±1% (voltage) / ±3% (current)
Key Features:
Dual Display: Displays both voltage and current sequentially, providing real-time data for users.
Wide Measurement Range: Capable of measuring DC voltage from 3V to 9V and current up to 5A, ideal for testing a wide range of USB devices.
Compact & Portable: Lightweight and small, making it convenient for everyday use and easy to carry around.
No External Power Needed: Powered directly through the USB interface, eliminating the need for additional power sources.
Two Output Ports: Allows simultaneous measurement of two USB-powered devices or testing multiple devices with ease.
User-Friendly: The switch between voltage and current display is automatic, making it easy to monitor device status without manual adjustments.
Applications:
Mobile Phone Charging: Monitor the voltage and current delivered by USB chargers to ensure they are within safe operating ranges.
Power Banks: Test the output voltage and current from power banks to check their efficiency and capacity.
USB Power Devices: Ideal for checking the power output of USB hubs, adapters, or other USB-powered electronics.
DIY Electronics Projects: Use for measuring voltage and current in various USB-powered gadgets and ensure that they meet expected specifications.
Troubleshooting and Calibration: Helpful tool for troubleshooting USB power issues or ensuring that devices are operating within optimal power parameters.
Portable Device Testing: Perfect for testing USB devices in the field, including chargers, battery packs, power supplies, and more.
Usage Tips:
Connect the Device: Simply connect the USB ammeter tester between your USB power source and the device you want to test. It will automatically begin displaying the voltage and current in turn.
Observe Readings: The tester will alternate between showing voltage and current. Ensure that the device you are testing is operating within safe voltage and current ranges.
Measure Power Efficiency: For USB-powered devices such as power banks, measure both voltage and current to determine the efficiency of power transfer.
Avoid Overcurrent: Ensure that the current draw does not exceed the tester’s maximum rating (5A) to prevent potential damage or inaccurate readings.
The USB Current Voltage Ammeter Tester is an essential tool for anyone working with USB-powered devices, providing a simple, effective way to monitor power consumption and ensure safe, efficient operation. Its compact design and ease of use make it perfect for both professionals and DIY enthusiasts.
