0.28" LED Red Dual-Display 4-Digital Current Voltage Meter / Ammeter / Voltmeter - Black
Supply voltage: DC 3.5~28V; Display: 0.28 -inch dual 4 LED digital tube; Display color: red; Refresh rate: about 200ms / times; Voltmeter Range : DC 0.0-99.9V ( resolution of 0.1V); Voltage measurement accuracy : ± (0.5% +2 digits ); Ammeter Range: DC 0~999.9mA-3.000A; Automatic variable precision