Specification:  Voltage: 12V;  Material: Metal;  Face Color: Black;  Size: 57mm*54mm;  Housing color: White;  Product Name: Oil Pressure Gauge;  Oil Pressure Reading from 0 to 140 PSI.     Wire Connection:  Red: 12v ignition switch;  Green: sensor "G"port;  Yellow: 12v dash lighting / 12v ignition switch;  Black: vehicle ground.     Features:  2" (52mm) Black Face Oil Pressure Gauge with a Magnified Tinted Lens.  Oil Pressure Reading from 0 to 140 PSI.   Oil Pressure Sensor with 1/8 NPT Male Threads with Mounting Hardware & Installation Instructions.  Suitable for 12V vehicles.  7 Solid Color Settings will meet your requirement, no matter what color you want.  Red Illuminated needle,bright LED display during the night.  The button on the lens can switch the color of light you want.     Fitment:   Universal Car 2"/52mm diameter Oil Pressure Gauge.  (The compatibility just for reference .Please make sure the item fit for your car before purchase.)     Note:  1.We provide clear pictures, measurements where possible. Please check as much as possible to make sure the item is the one that you need.  2. Please allow 0.5-1 inch difference due to manual measurement. (1inch=2.54cm)  3.Although Instructions Is Included.Professional Installation Is Highly Recommended   4.The color of the actual items may slightly different from the listing images due to different computer screen, thanks for your understanding.     Package Included:  1 x Oil Pressure Gauge;  1 x Oil Pressure Sensor;  1 x Cable;  (Including Other Mounting Hardware).