ITEM NAME:LED Digital Voltmeter Voltage Indicator Ammeter 0 - 100V 50A I1U1 LED Digital Voltmeter Voltage Indicator Ammeter 0 - 100V 50A I1U1 Voltage measuring range: 0 - 100V Current range: 50A LED light color: blue (voltage), red (current) Dimensions: 5 x 3 x 1,8 cm Operating Voltage: DC 4.5 - 30V Wiring: - Connect the small red cable to the anode of the operating voltage, the small black with cathode. - the large red cable to the anode of the tested voltage link (tension between this cable and the big black cable is displayed by LEDs) - The large common black cable to the power output tested connect (the small and the big black cables are together, they are connected.) (Connect to the cathode of the tested voltage) - The large yellow cable combine to the power input tested. Warning: For successful connection, please turn the distributor adjacent. package content:1 x voltage indicator 2 x connection cables Note:Light shooting and different displays may cause the color of the item in the picture a little different from the real thing.The measurement allowed error is +/-1-3 cm..Current range: 50A. - The large common black cable to the power output tested connect (the small and the big black cables are together, they are connected.).