DROK Dual Display 100-300V/100A Digital AC Amps Volt Ampere Meter 2in1+Voltage Tester Current Sensing Transformer Working Mode: Voltage and current dual display,2-wires Measuring Range: AC100-300V, AC0.1-100A (with sensor transformer) Display: LCD, blue backlight, 3 digits;Accuracy: 1% +/- 2 digits Power Consumption: &lt;0.2 VA;Can directly replace the 85L17 Analog current and voltage meter Usage:Power distribution box, distribution cabinet, regulators, teaching aids and etc.