How to Use: Fixed on the dashboard. Specification: Item Type: Exhaust Gas Temperature Meter Material: ABS Background Light: Red LED + white background Measuring Range: 0-1800℉ Working Voltage: 12V Application: Universal Fixed Size: Approx. 2-1/16in (52mm) Package List: 1 x Exhaust Gas Temperature Meter 1 x Power Wiring Harness 1 x Sensor 1 x Manual Note: 1. This product is suitable for 12V power supply, and strictly forbidden to use power supply exceeding 18V. 2. The power connection of this product is a red and black power cord, the red wire is connected to +12V, and the black wire is connected to ‑12V. 3. Connect other connectors as plug and play connectors, and it is strictly forbidden to damage or replace other connectors.