DC 0-30V 3wire LED digital display panel volt meter voltage voltmeter car motor
Input range: DC4.50-30.0V( red)/DC4.70-30.0V(green)/DC5.00-30.0V(blue) (Max Input: DC 30V. Input impedance: > 100KΩ. Display: three 0.56 "digital tube. 3 colors have different working current & Input range. ).