I’ve seen such a power supply≧◠◡◠≦

Описание: 1. uA level accuracy, current resolution 0.1uA
2. uA-A automatic shifting, range 0.1uA-2.5A
3. Linear voltage output, 1-12V adjustable (can be upgraded to 24V/5A)

4. High-speed 16-bit AD sampling
5. LCD screen (2.8 inches), showing the maximum current value
6. uA accuracy: 1%±1uA

7. Accumulated power consumption statistics to evaluate battery standby time
8. Built-in calibration function to eliminate environmental errors
9. Clear and reset statistical values (average current/power consumption accumulation/maximum current)