Description Two-wire DC-Voltage Meter 0.56Inch-RED Two-wire DC-Voltage Meter 0.56Inch-RED This is a standalone Red LED DC voltage meter. It measures 4.5V-30V with 1% accuracy. Best suitable for battery level display. Just apply two wires on the power without any extra circuit or components, it gives the reading straight away. Easy to use, and good company with robot application 1. The wiring of this voltmeter is simple, only two wires need to be connected, the red wire is connected to the positive, and the black wire is connected to the negative. There is reverse connection protection in the meter, and the reverse connection does not burn. 2. This voltmeter does not require an external working power supply, it can work directly with the measured voltage, and the working voltage range is as wide as 4.5-30V. 3. In order to achieve the best measurement accuracy, the voltmeter will automatically move the position of the decimal point according to the difference of the measured voltage. Measuring voltage below 10V At the time, two digits are displayed after the decimal point; when measuring a voltage above 10V, one digit is displayed after the decimal point. 4. This voltmeter can be used to monitor the battery voltage of motorcycles, automobiles, etc., and grasp the battery status in time. It can also be used for other voltage measurement purposes. technical parameter: Dimensions Length 48x width 29x thickness 16mm Measuring range 4.5-30V Hole Size 46x27mm .Low Input DC4.5V (Below. Low voltage measurement is inaccurate or not displayed) Lead length 20cm .High input DC30V(Higher than this voltage may burn out) net weight 17g Allowable error Accurate to 0.01V below 10V, 0.1V above 10V, tolerance 1% ( /- 1 word) Hair weight 22g(Including packaging) Display method Three digit 0.56″ LED digital tube Display color Red Refresh rate About 200mS/time Power supply No power supply Current consumption Less than 20mA, generally 5-15mA Operating temperature -10℃~65℃
