Feature:1. Up 8 grid color bar display, down voltage display, high accuracy, more intuitive display.2. Dual USB output, can be connected to mobile phone charging or other low-power USB devices.3. Simple wiring, only need to connect 2 wires can be used, easy installation.4. With reverse connection protection, even if the wire is reverse connected, it will not be damaged.5. Wide range of applications: mainly used for car mobile phone charging, car battery voltage power observation. Product parameters:USB voltage output: 5V 2AVoltage measurement range:Acid battery 12V (up to 18V)Lithium 3S 11.1V-12.6VMeasurement accuracy: about 1%8 stage power: 10%, 25%, 40%, 50%, 60%, 75%, 90%, 100%Allowable error: ±1%Working current: 5~25mADisplay color: red, blueOperating temperature: -10~65℃Working humidity: 10~80% (no condensation)Wiring length: about 20cmProduct size: 48*29*22mmOpening size: 45*26*18mm Connection mode: red line with positive terminal "+", black line with negative terminal "-"Note: The maximum measuring voltage of this product does not exceed 18V (it may burn after overvoltage) voltmeter accuracy is about 1%. Package included:1 x Dual USB 5V 2A Car Voltmeter Voltage Meter Panel 12V Lead Acid 3S Lithium Battery Capacity Indicator Power Tester
