Description: This LED turbo boost gauge uses LED to display the turbo boost pressure and it show numeral which is easy to understand. This digital PSI gauge can detect pressure from -14PSI to 40PSI which is suitale for daily using. This digital PSI gauge has two button on the case and you can use it to set the pressure alarm. This digital gauge is easy to install on the car and you can use the double side tape to stick the gauge on the car. This gauge is a practical tool to use and you can use the 12V battery to power,so it can be installed in most of car type. Specifications: Color: Black Face, Blue LED Material: Metal Size: 13mm * 51mm * 35mm Measurement Range: -14~40PSI Power: DC 12V professional 100% New Brand and High Quality Lighting on the dial for easy reading in the darkness. Professional installation is highly recommended. Fearures: Digital display with blue LED Used to measure the turbo boost of automobile Measurement range is -14 psi to 40 psi Used to measure the pressure of vacuum pressure High accuracy and easy operation Installation Instruction: Connect the boost gauge to its cable and powered by 12V. There are two buttons in boost gauge. Press buttons and LED will flash. Press these two buttons to set alarm number. Press left button to decrease & press right button to increase. Set alarm number, and the setting will be saved after 5 seconds. Package Included: 1 x Boost Gauge Kit All accessories shown in the picture will be provided. Note: Please confirm that this product is available for your car before purchase. If you have any confusion, you are welcome to contact us.