USB Charger Doctor (Voltmeter Ammeter)
Measure voltage and current output for any USB port and project.
- 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
- Shipment Weight: 0.125 kg
- Shipment Dimensions: 6 x 3 x 2 cm
Top Features:
- Compact and easy to carry, plug, and play
- Measure USB port output voltage and device current
- Detect various USB chargers
- Wide range of applications, suitable for all electronic products
Use the USB Charger Doctor to measure the working voltage and current output for any USB port and project. This blue plastic dongle plugs between a USB device and passes the data lines through. There is a 0.05-ohm resistor in line with the power pin that is used to measure current draw. The Doctor's digital display instantly reads the numbers out for testing devices such as chargers, cables, and cell phones. You can use this device from the 3.5-7VDC input voltage (although most USB devices tend to hover around 4.75 to 5.25) and up to 3A of current. It flips between voltage and current readouts every 3 seconds or so. It's a very handy tool for testing USB devices, checking load levels, and debugging battery chargers and boost converters. It's a little chunkier but more numerical than our USB Power Gauge Mini-Kit. It's also not open source so check out the USB Power Gauge mini kit if you want to hack together your power gauge indicator.
* Images are for illustration only; actual product may vary.