1. -bit or six-bit display can be switched by one button , with the maximum resolution of 0.00001, which can real time monitoring of the changes in voltage, current and power during recharging. 2. This product uses USB3.0 interface, 9 pin design, downward compatible with USB2.0,+ the transmission rate of USB2.0.There is no need tousetheprimarydata cable, it can also directly test the recharger agreement of some mobile phones. 3. This product can record 10 sets of measurement data, you can use the data you to calculate the capacity of battery. 4. This product directly add the calculate formula on this product, the multiply 1000 to the capacity of battery. 5. This product support read the data of E-Marker and DASH cable, and the chips of e-marker and DASH cables can be read after connecting the data lines. 6. This product support screen flip function, through the gravity-induction, the screen can be free to flip, you can also turn off gravity-direction recognition and flip the screen by long pressing the middle key. 7. This product uses differential pressure to measure cable resistance. It is used with constant current load to detect cable resistance. Model: FNB48S Version: without Bluetooth Monitor voltage: 4~24V Monitor voltage resolution: 0.00001V Monitor voltage accuracy:(0.2%+2) Monitor current: 0~6.5A Monitor current resolution: 0.00001A Monitor current accuracy:(0.5%+2) Monitor power: 0~156W Monitor current resolution: 0.00001W Monitor current accuracy:(0.5%+2) Load equivalent international resistance: 0~9999.9 Load equivalent international resistance resolution: 0.0001 Load equivalent international resistance accuracy:(0.5%+2) Capacity: 0~9999.99Ah Energy used: 0~9999.99Wh Cable resistance: 0~9999.99 D+/D- voltage: 0~3.3V D+/D- voltage resolution: 0.001V D+/D- voltage accuracy:(1.0%+2) Equipment temperature:/ color:Black Material:PCB+metal Package Contents: 1 x Protocol Capacity Test Tool 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.