Feature: 1. There are 8 different backlight colors, and it will automatically change every 1 minute, or you can fix only one color you want by pressing the "Settings" button of the gauge. 2. Stepper motors, fit for full range of stepping gauges, low power consumption, long lifespan. 9‑32V ultra‑wide long‑term working voltage, and it maximum up to 36V (≤1 minute)). 3. IP67 waterproof and dustproof, 316L stainless steel bezel, anti‑corrosion, durable to use, adapted to acid, alkali and humid environments. Anti‑fog curved glass, display the data clearly. 4. There is a snap together with the harness connector for the best and secure connection, ensuring that the gauge can work normally even under strong vibrations. 5. Applicable to all kinds of vehicle modification, can be used for engine/generator sets, ships, construction machinery, agricultural machinery, automobile modification, etc. Specification: Item Type: Oil Temperature Gauge Material: Stainless Steel 316L Bezel + Anti-Fog Glass Color: White Dial Silver Bezel Functions: Display current Oil Temp Operation Mode: Stepper Motor Installation Diameter: Approx. 52mm/2in Working Volt: 9-32V(12V/24V) Signal: 361-19ohm Range: 50-150℃ Operating Temperature: -30℃-+75℃ Storage Temperature: -40℃-+85℃ Protection Class: IP67,can work underwater 1m position Backlight: 8 Colors: red, green, blue, white, yellow, olivine, orange, purple, totally 8 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 How to Use: Fix the meter on the instrument panel and connect the power cord Wiring: The red wire is connected to the positive pole The blue wire is connected to the negative pole The black wire is connected to the sensor The orange wire is connected to backlight Installation Notes: 1. Cut a hole 52mm in diameter in the panel (your engine room panel and instrument panel) and insert the meter into the hole corresponding to the panel marked with a boss and make a small notch in this position to ensure at least 52mm (2in) instrument panel on the back of the instrument. 2. After installing the instrument into the panel, screw down with the fixing ring 3. Connect the wires, the instrument shell is directly connected to the 12/24V power supply 4. Insert the wire harness and fix it firmly on the table. Package List: 1 x Oil Temperature Gauge1 x Power Wire Harness1 x Manual