DROK AC 80-300V/50A 110V 220V Digital LED Amp Volt Meter Ammeter Voltmeter Gauge With Current Sense Transformer Working Mode: Voltage and current dual display, two wires connection Measuring Range: AC 80-300V, 0-50A (built-in sensor transformer) Display: 3 LED digital tube;Display Color: Voltage Red, Current Green Can directly replace 85L17 Analog current and voltage meter Uses:Charger, inverter, solar energy, wind turbines, LED lights measurement and etc.