The voltmeter is a compact mini DC 0-100V voltage measuring device to measure 2 line and 3 wire products, general use, break through digital dc volt meter, is the latest design, can work directly in 5V, 9V, 12V, 24V and other circuits, without voltage regulation. Equipped with three wiring, easy access to the car / storage battery car / motorcycle inside line, with reverse connection protection function, line connection will not burn. Used to monitor the battery voltage, timely grasp the state of battery voltage, can also be used for other products voltage measurement purposes. Wiring Diagram: Please check and follow the circuit diagram before connecting this digital dc volt meter. Features of DC Volt Meter: Small in size and light in weight, quite easy and convenient to carry out. 0.28″” visible LED display, easy to read even in dim light. Wide measure range DC 0V-100v. It requires extra power supply of 4V to 30V; only has three-wires for simple connection. With reversed connection protection, meaning it will not burn even when wires are connected reversely. Has resolution of 0.1V and the potentiometer in the back side for accuracy adjustment. Specifications: 2 line working voltage: 4.0~40V (with reverse connection protection function) 2 wire detection voltage: 0.0~40V 3 line working voltage: 4.0~40V (with reverse connection protection function) 3 wire detection voltage: 0.0~100V Operating current: <20mA Display: 0.28, “LED”, red Size: 33 x 10.7 x 8.2 mm (length * width * height) Installing openings: 28.5 * 10 mm The measurement rate: more than 200mS/ times Measuring accuracy: 3 per thousand Extreme working condition Low operating voltage: 4.0V Maximum operating voltage: 40V Operating temperature: -10 ~ 65 DEG C Working humidity: 10 ~ 80% (without gel) Working pressure: 80 ~ 106kPa
