1、This DC voltage meter is small in size, compact design. 2、It can measure and show voltage, the measuring range is 0~100V DC. 3、The voltage meter uses 0.28inch 3-digit LED display, clear to read. 4、There are 3 wires, easy to connect; it supports reverse input protection, will not burn out. 5、Widely used for kids' cars, electric bikes, motorcycles to monitor battery voltage, and many other voltage metering purpose. Features: There are 3 wires, easy to connect; it supports reverse input protection, will not burn out. Specification: Metering Range: 0-100V Working Current: <30mA Operating Temperature: -10~65℃ Test Accuracy: 3% Certificate: CE ROHS Size: 3*1cm/1.2*0.4in Weight: Approx.9g/0.3oz Package list: Note: Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.