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This is a simple 3-digit LCD display of voltage. To use it, first hookup the power voltage (between 3.3 and 30 volts) to the red and black wires, with black as ground. Then, hookup your input voltage that you wish to measure to the yellow and black wires. If you wish to measure the voltage that is powering the device, simply twist the red and yellow leads together.

  • Black: Shared Ground (-)
  • Red: Power (+)
  • Yellow: Input (+)

  • Measured voltage range: 0 - 99.9 VDC
  • Power voltage range: 3.3 - 30 VDC
Product condition: New