USB Charger Doctor Current Voltage Charging Detector Battery Voltmeter Ammeter

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Charger Doctor USB Voltage / Current Charging Power Supply & Battery Tester<br>This handy USB voltage and current meter (voltmeter / ammeter) is easy to use, simply plug the tester between the USB port and the device you would like to test, and the voltage and current will be displayed on the tester's LED display. (The display alternates between voltage and current.)<br>This tester is ideal for testing the functionality of all of the old USB power supplies you have accumulated. You can also plug this device into your desktop or laptop computer's USB ports to display its output voltage and current.<br>Features:<br>Compatible with USB 1.0, USB 1.1, USB 2.0, USB 3.0 ports.<br>Operating System Independent. No drivers or software necessary, the values are displayed in the tester itself.<br>Voltage Range: 3V ~ 7.5V<br>Current Range: 0 ~ 2.5A<br>Voltage Resolution: 10mV<br>Current Resolution: 1mA<br>Error range: Voltage <±1% Current<±2%<br>Full-scale voltage drop: 200mV<br>Operating Temperature: 0-60°C<br>Size: 52mm x 21mm x 15mm (2.05" x 0.8" x 0.59" (L x W x H)<br>Simple and convenient to use<br>Portable and easy to carry<br>The voltage and current are displayed on the LED, the values alternate between the measured voltage and current<br>Plug and play<br>Powered through the USB connector, works without additional power supply<br>Package Includes:<br>1 x USB Power Current Voltage Ampere Tester<br>The laptop, cable, USB cord and/or any other item shown in the pictures is for functionality display purposes only and are not included.<br>Get it faster! Ships in 1 business day from our Colorado office for quick delivery.<br>We provide FREE USPS First Class Shipping with Tracking - Not Economy Shipping<br>