Kimdrox Digital Volt Ampere Amp Voltmeter Ammeter 100-300V 100A LCD Voltage Measuring Current Sensing Resistors Two Wires Working Mode: Voltage and current dual display, 2-wires;Color Of Housing: Black Measuring Range: AC100-300V, AC0.1-100.0A (with sensor transformer);Power Consumption: &lt;0.2 VA Display: LCD, blue backlight, 3 digits;Accuracy: 1% +/- 2 digits Measurement Speed: about 2 times / sec Dimensions: 70x40x40mm;Installation Size: 68x38 mm (flush mounting);Sensor Pore size: 15.5mm