["0.28 Inch Digital for DC Voltmeter Ammeter 4 Bit 5 Wires for DC 200V 10A Voltage Current Meter Power Supply Red Blue LED Dual Display\r\n\r\nSpecifications:\r\nHigh precision, four digital display\r\nWorking voltage:DC4V-28V\r\nWorking current:<20mA\r\nDisplay: 0.28\" Two color blue and red\r\nMeasuring range:DC 0-200V 0-10A Built-in shunt\r\nMeasure accuracy:\r\nVoltage: Range x 0.08%+Two digits\r\nCurrent: Range x 0.08%+Two digits\r\nRefresh rate: about 1S / 3times\r\nOperating temperature: -10 to 65° c\r\nWorking pressure: 80 to 106 kPa\r\nsize :48×29×20 mm\r\n \r\nAbout wiring: \r\nRed line thin: power supply+\r\nRed line (thick): IN+, current input\r\nYellow line (thick):PW+, measuring terminal voltage input positiv\r\nBlack line thick: COM, common measurin\r\n \r\nPackage include:\r\n1x Digital for DC Voltmeter Ammeter for DC 200V 10A Voltage Current Meter Power Supply Red Blue LED Dual Display"]