ITEM NAME:Universal Car 2" 52mm Fuel Level Meter Gauge Motorcycle LED Digital Display DC12 Description: 8 Blue/Green LED display Fuel 1 yellow LED means that the gas is few, and 1 red LED means the petrol is almost running out This oil meter has a delay function circuit that does not cause flickering of the LED display because the tank is sloshing during driving. Blue LED can be clearly shown in strong sunlight Item type: LED Fuel Gauge Material: iron plating Shell Color: Black Size: Diameter 52 mm, Depth 28 mm LED Display: Red (1), Yellow (1), Blue (8) Connection Instructions: Black wire connects to the positive supply (+ 12V) supply. Green Wire connect to earth. Yellow wire connects to the sensor. (not included) This Gauge includes a small adjustable resistor to allow you to calibrate it to your Fuel Depth Sender. Notes: This product requires a fuel sensor to supply it with the fuel depth. This product is NOT waterproof. Package Includes: 1 x LED Fuel Gauge Notes: 1. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! 2. Please allow 1-3cm measuring deviation due to manual measurement..Item type: LED Fuel Gauge. 1 x LED Fuel Gauge. 8 Blue/Green LED display Fuel. LED Display: Red (1), Yellow (1), Blue (8). Blue LED can be clearly shown in strong sunlight. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures.