Single Led 12volts to 17volts Voltmeter Motorcycles Cars
Ultra compact easy to use, easy to install, easy to read
Red Color 8volts to 12volts
Green Color 12volts to 14,4volts
Blue Color !4.4volts and up
Just 2 wires, positive and negative
Connect the positive to a ignition signal and negative to ground
The better of the ignition signal the best voltage reading.
