Monitoring voltage: 4-24V Monitor voltage resolution: 0.00001V Monitoring voltage accuracy: (0.2+2) Monitoring current: 0-6.5A Display current resolution: 0.00001A Monitoring current accuracy: (0.5+2) Display power: 0-130W Display current resolution: 0.00001W Monitoring current accuracy: (0.5+2) Load equivalent resistance: 0-9999.9 Load equivalent resistance resolution: 0.0001 Load equivalent resistance accuracy: (0.5+2) Capacity: 0-9999.99Ah Use energy: 0-9999.99Wh Cable resistance: 0-9999.9 D+/D- voltage: 0-3.3V Equipment temperature: / Compatibility Issues: There may be incompatibilities problems of the PC software with some Windows systems, if you really need it, please install and test the software before buying the product. There are many types of mobile phones and operation systems, so there may be incompatibilities, if you need APP, please install and test the APP before buying the product. Colour:Black Material:ABS note:C1 without Bluetooth Package Contents: 1 * 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.