Wholesale Multifunction Waterproof 9V-24V Car Motorcycle LED Smart Digital Display Motorcycle Voltmeter Meter

Description:
1.It can Mount on the rear view of the mirror
2.Super Waterproof & high performance design & Fashion appearance & Exquisite content & Rich color & High and low temperature resistance & Acid and alkali resistance & Intelligent low voltage alarm , please buy it with your confidence.
3.Voltage: DC 9V-24V, Note: Input voltage higher than 24V may be permanently damaged!
4.Material: hard plastic and a reinforced
5.LED color: Red / White / Green /Blue
6.Wiring:
①Black line connect for negative
②Red line connect for positive
7.Function setting:
①Press and hold the function key "SET" for 5 seconds, the Voltage zone number of the flashes, the function key "SET" can adjust the Voltage zone value;
②and then press and hold the function key for 5 seconds to exit the Voltage setting
8.Refresh speed of about 300mS once, Lead length 49cm
9.Environment Temperature: -40---60 degree centigrade