ITEM NAME:0.36 inches Voltmeter with red LED Digital Panel 0 - 33V 4 Figures A8W2 0.36 inches Voltmeter with red LED Digital Panel 0 - 33V 4 Figures A8W2 Compact size, high precision, with the software filtering function For use with motorcycle, car, electric bike, scooter, and so on Display Type: 0.36 "LED digital tube, 4 digits Power supply: DC7 - 30V Refresh rate: approximately 300 ms / time Range: 0 - 33V Polarity input: DC voltage Overload capacity: range of 4 times Input impedance: 100kOhm Accuracy: 0.1% (+/- 1 digit) Size of the LEDs: 30 x 14mm Card size: 34 x 16mm Operating temperature:-40 degree - 85 degree LED color: Red Wiring: Red: positive Black: negative- Green: voltage measured The package includes: 1 X digital Voltmeter Note:Light shooting and different displays may cause the color of the item in the picture a little different from the real thing.The measurement allowed error is +/-1-3 cm.