Brand new voltmeter and high quality <br />Small size<br />Easy to install <br />Size: approx. 35 x 14 x 10mm<br />Module name: voltage display module<br />Accuracy: 1%<br />Display: three yards tube <br />Measuring range: DC 0-9.99V <br />Power supply input range: DC4.5-30V<br />Working current: less than 20mA<br />Display color: yellow <br />Storage temperature: -10 ℃ to +65 ℃Black: negative electrode，Red: positive power supplyBlue: test the input voltage of the positive electrode.<br />1 x Mini voltmeter<br /><img src="http://img6.eachbuyer.com/x7/p8/r669_3.jpg" />                                                        <img src="http://img6.eachbuyer.com/x7/p8/r669_4.jpg" />