USB tester: The upgraded color USB tester has 12800 pixels IPS HD color digital LCD display, which can read data clearly; The screen rotation function allows reading in different directions. At the same time, in order to more accurate measurement, USB instrument tester uses sampling chips with internal resistance as low as 1 milliohm (1 meter ohm) to you with more values and reduce power consumption. Multi functional USB meter: USB meter tester is mainly used to detect USB charging current, voltage, capacity, power, time, etc., to display accurate data in real time; Check the quality of the charger and cable to a safe charging environment for valuable equipment. USB tester can automatically detect different fast charging protocols, including 2.4A/2.1A/1A/0.5A; Android DCP/; 9V/2A, SCP 4.5V/5A; Qualcomm QC2.0/3.0. Power failure memory function: the discharge process from 100% to 0 is required to test the capacity of the power pack, which takes a long time to complete. The power down storage feature allows you to complete this process in one or more operations, because capacity accumulates again when power is applied again. Up to 9 sets of data can help you calculate the actual capacity. During this process or at night, you can turn off the screen for a non intrusive experience. Wide test range, simple operation: input/output voltage: DC3.6-30V, current range: 0-5.1A. Various USB meters can be widely compatible with USB-A port devices, such as mobile phones, tablets, laptops, car chargers, power packs, wall chargers, cables, etc., to display charging data in real time. The USB tester is small and light, providing a safe environment to charge anytime and anywhere. What you : 1 package of multimeter USB tester is clearly visible. Colour:transparent Material:plastic Package Contents: 1 x USB tester Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.