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: 0-9999.9Ω Load equivalent resistance resolution: 0.0001Ω Load equivalent resistance accuracy: ±(0.5‰+2) Capacity: 0-9999.99Ah Use energy: 0-9999.99Wh Cable resistance: 0-9999.9Ω D+/D- voltage: 0-3.3V Equipment temperature: ℃/℉ Compatibility Issues: ①There may be incompatibilities problems of the PC software with some systems, if you really need it, please install and test the software before buying the product. ②There 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.