ITEM NAME:Blue Red LED Amp Dual Digital Volt Meter Gauge + DC 100V 10A Voltmeter Ammeter 100% brand new and high quality Working voltage:4.5-30V DC Note: The maximum input voltage can not exceed 30V, otherwise there is the danger of burning Working current:≠¤20mA Display: 0.28" Two color blue and redï ¼Å’or red color, random.Working pressure: 80 to 106 kPa. Minimum resolution (A): 0.01A.