25 Jul DC Digital Voltmeter Ammeter 0-300V 50A 100A 300A Voltage Amps Power Kwh Meter
Overflow will be maintained, unless you reset it; if the current is reverse, the energy will decrease, maximum is -999kwh, overflow will be. 1 Wrench (only for 50A and 100A). Reset Energy. Long press the key over than 3 seconds can reset the energy....