RuiLing 2-Pack Two Wires Mini LED Digital Voltmeter Voltage Meter DC 4.5V to 30V Voltage Panel Meter for 6V 12V Electromobile Motorcycle Car Red

Basic info: Overall dimensions: 8 x 29 x 22 mm/ 0.31 x 1.14 x 0.87 inch(LxWxT) Opening size: 46 x 27 mm/1.81 x 1.06 inch Operating current: below 18mA Measurement range: DC 4.5-30 Volt Working temperature: - 20 ~ 65 Degrees Celsius Description: The voltmeter wiring is simple, only need to connect the two wires; It has reverse connect protection, even if it is connected reversely, it will not be burnt down; If the input voltage is higher than 30 Volt, it may be permanently damaged! Package content: 2pcs red Digital Voltmeter