USB Charger Doctor (Voltmeter Ammeter)
Help is here! The patient seems to be overheating—could it be low voltage or excessive current draw? Don’t worry, the USB Charger Doctor (Voltmeter Ammeter) is on the case! Doctor, could you kindly measure the voltage and current for us? With your expertise, we’ll keep our USB-powered projects running smoothly.
The USB Charger Doctor is a handy tool designed to measure the voltage and current output from any USB port or device. This compact blue gadget sits between a USB device and its power source, passing data through while monitoring power. It uses a 0.05-ohm resistor on the power pin to measure current draw.
With its digital display, the device shows key metrics for testing USB equipment such as chargers, cables, and cell phones. It works within an input voltage range of 3.5-7VDC (with most USB devices operating around 4.75 to 5.25V) and can handle up to 3A of current. The display cycles between voltage and current readings every three seconds, making it essential for testing, monitoring, and troubleshooting USB devices, chargers, and boost converters.
While slightly larger than the USB Power Gauge Mini-Kit, the USB Charger Doctor provides more detailed data. However, it’s not open-source. For those wanting a customizable power gauge, the USB Power Gauge Mini-Kit may be a better fit.
Features:
- 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
- The wide range of applications, any phone, any electronic product, easy to use
- Suitable for factories, laboratories, and personal use
Specification:
| Operating Voltage (VDC) | 3.5 ~ 7 |
|---|---|
| Maximum Operating Current (A) | 3 |
| Color: | Blue |
| Material | ABS |
| Length (mm): | 53 |
| Width (mm) | 20 |
| Height (mm) | 15 |
| Weight (gm) | 15 |
| Shipping Weight | 0.018 kg |
| Shipping Dimensions | 6 × 3 × 2 cm |
Package Includes:
1 x USB Charger Doctor (Voltmeter Ammeter)
Technical Specifications
| Interface / Protocol | USB |
|---|---|
| Connector Type | USB-C |
| SKU | AI3425 |
| Weight | 0.02 kg |
| Availability | In Stock |
Applications & Use Cases
The USB Charger Doctor (Voltmeter Ammeter) is a versatile digital voltage, current and frequency meter used across a wide range of applications including electronics projects, DIY builds, prototyping, and educational experiments.
Common use cases:
- Integrating into a custom electronics project
- Learning and experimenting with circuits
- Replacing or upgrading components in existing setups
This product is ideal for electronics enthusiasts, engineers, and students.
Technical Tip: Always verify voltage and current requirements before connecting to your circuit. Check datasheets for detailed specifications and pin configurations.
Shipping & Delivery
- Free shipping on orders above ₹999 across India
- Dispatched within 1-3 business days
- Expected delivery: 3-7 business days depending on location
- Secure packaging to ensure safe transit of electronic components
