Input signal:0~190ohm、0~180ohm、10~180ohm、240~33ohm、240~30ohm. If you have another car products to need, we are more glad to help you! - Backlight color:red、green、blue、white、yellow、orange、purple,totally 7 kinds different backlight color,it will change automatically every 1 minute,or you can fix only one color that you like through press the gauge back "set" button.
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