DC0-100V1A 10A LED DC Dual Display Digital Current and Voltage Meter $ 5.58 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 red/red and red Measuring range: DC 0-100V 0-10A Minimum resolution (V): 0.1V Refresh rate: 100mS / time Measure accuracy: 1% ( 1 digit) Minimum resolution (A): 0.01A Operating temperature: -15 to 70 c Working pressure: 80 to 106 kPa size :482921 mm