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    >    3½ dc +/- 150A blue lcd digital amp panel meter + shunt  
3½ dc +/- 150A blue lcd digital amp panel meter + shunt
3  DC +/- 150A Blue LCD Digital AMP Panel Meter + Shunt
    Measuring Range : 0 ~ +/-150.0A
  * Panel Cutout Size : 71mm   39.5mm
    1 X DC 150A LCD Digital AMP Panel Meter
    1 X 150A 75mV Current Shunt Resistor
Q : If all amp meter must match with current shunt resistor to measure and monitors the current?
A : Amp panel meter must match with current shunt resistor to measure and monitor the curent when the curent greater than or equal to 10 amps current.
