10 PCS 0.56 inch 2 Welding Wires Digital Voltage Meter with Shell, Color Light Display, Measure Voltage: DC 4.5-30V (Red)
2. Small and lightweight, easy to carry.
3. Display devices use high bright LED digital tube, stunning display effect.
4. With reverse polarity protection, reverse not burned.
5. The voltmeter only two wires, wiring simple and reliable performance.
6. Suitable for measuring DC voltage, no need external power, measure range: 4.5V ~ 30V.
7. Wide voltage to work, red measure min voltage 2.5V, safe load voltage max 40V, over 40V, maybe damaged.
8. When measuring voltage below 10V, two digits are displayed after the decimal point; when measuring voltage above 10V, one digit is displayed after the decimal point.