... current:100A Min.operating voltage :7.2v Two-meter/Voltage/Watt meter/Checkermaster measuring current ,voltage,time and servoSpecification:Input ... 20mA at battery checker programDimension:105*50*20mmSpecial featuresTwo-meter is a very sophisticated electronic device that controlled ... have a balancing plug for checking voltages.-watt-meter programThe watt-meter circuit can measure the elctric currnt up ...