car 12v motorcycle modified voltmeter digital waterproof digital voltmeter retro motors instrument

product size: surface diameter: 6.1 cm, height: 5.2 cm, the table in the middle diameter: 6 cm product led color: red product input voltage: 12v product output voltage: 12v ambient temperature: 60 measuring range: 9-15v product weight: 195g product shell material: chrome plated applicable models: all vehicles suitable for 12v battery voltag