Mini Digital Red + Blue LED Display Voltmeter Ammeter DC Ampere Meter

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°