uxcell 85C1 DC 0-1.0V Rectangle Analog Volt Panel Meter Gauge Measures voltage range of DC 0-1V with accuracy of Class 2.5. Clear and easy to read scale and a button for fine tuning the dial. The Ammter need to work with a current transformer(CT), which is not included here. High accuracy, low power consumption. Easy to test. It also be used for other products current measurement purposes.