It is a 6in1 USB Digital Meter Portable Multifunction USB Doctor USB 3.0 Tester Meter/Monitor, Applicable computer USB, cell phone charger, car charger, mobile power equipment or other USB port device.

Technical Parameters:

• Voltage measurement range: DC 3.70~9.99~13.0V          
• Current measurement range: DC 0.00~3.00A
• Temperature measurement range: 16°c~60°c(60.8°F-140°F)            
• Capacity accumulation range: 0~9999mAh~99.99Ah
• Energy accumulation range: 0~9999mWh~130Wh         
• Voltage measurement accuracy: ± (0.3% + 1digit)
• Current measurement accuracy: ± (0.5% + 2 digits)     
• Temperature measurement error: ±2°c
• Run time range: 0~99h59min                                         
• Update rate: 2 times/s
• Quiescent current: about 10mA                                      
• Font color: White
• Product size: 64.0 x 21.6 x 11.2mm (L x W x H)
• Port mode: compatibility USB 2.0 /USB 3.0                      
• Display screen: 0.91" OLED screen
• More information please refer to the product instruction.

Package Includes:

• 1 x OLED USB 3.0 Tester/Monitor (6in1)