Greluma 5Pcs Mini DC Digital Voltmeter 0.28" Voltage Tester Mini DC Three Wire Voltmeter 0V-100V - 5 Colors

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Product description

  • 0.28 inch LED display. Small size and lightweight, quite easy and convenient to make.
  • 2 Connection Methods 3 wires are connected separately to measure voltage and power (red and yellow for positive, black for negative); 3 wires are used as 2 wires, connected to measure voltage below 30V (red yellow can be paired for positive, black for negative)
  • Max. Input Voltage DC 100V Above 100V, there is a risk of burning.
  • And with fine tension adjustment function. The screw on the back can be adjusted to calibrate --- turn clockwise to lower the tension.

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