Description:? ? ?

• It can measure the USB-powered devices empty and.
• Easy to use and practical.
• 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.
• Wide range of applications， any phone， any electronic product， Easy to use.
• Suitable for factories， laboratories and personal use.
• Can measure usb interface， cell phone charger， u disk and other products or power supply situation.
• Voltage: 3.5V-7.0V error 0.1V
• Current: 0A-3A error 0.01A
• Size: 52mm x 33mm x14mm(approx)
• Color: Blue
• 
• Note: Due to the difference between different monitors， the picture may not reflect the actual color of the item. Thank you!