52mm Fuel Level Gauge 7 Colors Backlight 0‑190 Ohm IP67 Waterproof Pointer Type Oil Tank Level Meter 9‑32V Item Type: Fuel Level Gauge Material: Stainless Steel 316L Bezel + Anti Fog Glass + PC Input Signal: 0-190ohm Gauge Display Range: E, 1/4, 1/2, 3/4, F Protection Grade: IP67, the whole body is completely waterproof; excellent anti-fog function, can work at 1m underwater Backlight Color: 7 Colors (color can be changed by back button) Working Voltage: 9-32VDC, maximum up to 36V Working Current: ≤60mA Operating Temperature: -30℃-+75℃ Storage Temperature: -40℃-+85℃ Installation Steps: Step 1: Open a 52mm /  2-1/16in diameter round hole in your central control or other pre installation locationStep 2: Put the meter into the opened round hole Step 3: Match the screw holes of the bracket to the screws on the back of the meter, then tighten the screws, and clamp the panel with the bracket and the bezel Step 4: Insert the power wiring harness directly into the back wiring port of the instrument, and then connect the corresponding sensor and wiring harness according to the distribution instructions, and then connect to the power supply.