Mini USB charger doctor voltage current tester. <br><br><strong>Features:</strong> <br>Compact and easy to carry￡? no additional power supply￡? plug and play. <br>It can easily measure the output voltage of the USB port and the device operating current or load voltage. <br>Detect any USB charger such as PC USB￡? home charger￡? car charger. <br>Wide range of applications￡? any phone￡? any electronic product￡? easy to use. <br>Suitable for factories￡? laboratories and personal use. <br><br><strong>Specification:</strong> <br>Color: Blue <br>Detection range: Voltage: 3.5V-7.0V Current :0A-3A <br>Product size: 5.3 * 2 * 1.5cm / 2.1 * 0.8 * 0.6in <br>Product weight: Approx. 15g / 0.5oz <br>Package size: 5.3 * 2 * 1.5cm / 2.1 * 0.8 * 0.6in <br>Package weight: Approx. 15g / 0.5oz <br><br><strong>Package List:</strong> <br>1 * USB Charger Tester