1Oil temperature gauge, with 50150 display range and 36119ohm signal, and it has 8 different backlight colors, which will automatically change every 1 minute. 2Stepper motors used for full range of stepping gauges, low power consumption, long lifespan. 932V ultrawide longterm working voltage, maximum up to 36V (1 minute)). 3IP67 waterproof and dustproof, 316L stainless steel bezel, anticorrosion, durable to use, adapted to acid, alkali and humid environments. Antifog curved glass, display the data clearly. 4The harness connector has a snap to ensure the best and secure connection, so that the gauge can work normally even under strong vibrations. 5Suitable for all kinds of vehicle modification, can be used for engine/generator sets, s, construction machinery, agricultural machinery, automobile modification, etc. Item Type: Oil Temperature Gauge Material: Stainless Steel 316L Bezel + Anti-Fog Glass Color: Black Dial Silver BezelFunctions: 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 1 x Oil Temperature Gauge 1 x Power Wire Harness 1 x Manual