ITEM NAME:Dual LED Digital Voltmeter Ammeter Panel Amp Volt Gauge DC 0-100V 0-10A Descriptio n Description: Working voltage of Meter itself:DC 4 - 30V(The maximum input voltage can not exceed 30V. Otherwise the meter will be burned) Working current of Meter itself:≠¤20mA Voltage Measuring range: DC 0 - 100V Current Measuring range: DC 0 - 10A Voltage resolution (V): 0.1V Current resolution (A): 0.01A Measure accuracy: 1% ( ± 1 digit) Display: 0.28" digital tube, Two color blue and red Refresh rate: about 300mS / times Dimensions:48mm*29mm*26mm Operation Temp: -10℃-+65℃ Package Included: 1PC*DC 100V 10A Voltmeter & Ammeter Note: 1.Please allow a little size error due to manual measurement. 2.Please be reminded that due to lighting effects and monitor's brightness/contrast settings etc, the color tone of the website's photo and the actual item could be slightly different. Whatever the ending's perfect or not, you can't disappear from my world Voltmeter Ammeter Dual Digital.Display: 0.28" digital tube, Two color blue and red. We want to make sure you are happy with our item. Goods without RMA number will NOT be accepted. We'd like to settle any problem in a friendly manner.