diymore 5PCS 0.28" Volt Amp Meter Digital Voltmeter Ammeter DC 100V 10A Waterproof Dual Display Current Voltage Meter Mini Ammeter Voltmeter 3 Bits Dual LED Display Panel(Red-Blue)

Specifications: Working Voltage: DC 4.5-30V Working Current: ?20mA Voltage Measuring Range: DC 0-100V Current Measuring Range: DC 0-10A Voltage Resolution (V): 0.1V Current Resolution (A): 0.01A Measure Accuracy: 1% (± 1 digit) Refresh Rate: about 300mS / times Dimensions: 48mm*29mm*26mm Operation Temperature: -10?-+65? 2 Wires Definition: Black - Red : Working voltage of meter itself is DC 4.5-30V Black - Yellow : Voltage Measuring range is DC 0-100V Attention: 10A below ammeter (include 10A), built-in shunt, does not require external shunt. The maximum input voltage can not exceed 30V. Otherwise the meter will be burned. Package Included: 5pcs* 0.28'' Volt Amp Meter(Red-Blue)