2 Inch 52mm Car LED Water Temperature Gauge 40-140 Celsius Red Blue Universal<br /> <br /> Features:<br /> <br /> Dual Color display.(Red \/ Blue)<br /> Smoke tint lens during the day,Clear and bright LED Display during the night.<br /> Add a racing look and feel to your ride.<br /> Durable.<br /> Easy to install.<br /> <br /> Specification:<br /> <br /> Power:DC 12V<br /> Reads: 40-140\u2103 For Water<br /> LED Color:Red \/ Blue<br /> Diameter of installation:52mm \/ 2 inch<br /> Diameter of display:49mm \/ 1.9 inch<br /> Quantity:1 pc<br /> <br /> <br /> Wiring Instructions:<br /> <br /> Red -- 12V accessory Power(+)<br /> Black -- Ground negative(-)<br /> White -- Engine accessory power<br /> Orange -- Head light switch (12V switch power)<br /> Green -- Temp Sensor (connect to green wire from sensor)<br /> <br /> Note:<br /> <br /> You can choose Red or Blue by different Connection method( you can read the instructions).<br /> Professional installation is Highly Recommended.<br /> <br /> Package Included:<br /> <br /> 1 X Water Temp Gauge<br /> 1 X Mounting hardware<br /> 1 X Instructions