Product DescriptionThe voltmeter need independent power supply, power supply range is DC 4.5-30V, powered access between the red and black lines,
Firstly the voltmeter shows 0.0, then you can put the yellow and black line in between to measure voltage.Features:
Wide measurement range 0-200V.
Mini Red LED disp..
The AC current sensor
is based on Current transformers, it transforms the big AC current to
little, and then convert to voltage with the build-in resistor so users
can get the AC current value via measuring the output voltage with any
microcontroller such as Arduino. The split core type makes this sensor
suitable for DIY usage such as en..