The structure and working principle of oil level gauge and liquid level gauge are basically the same, both consisting of components such as float and sensor. Among them, level gauges often use magnetic floats or floating balls, which float up and down through the high and low liquid levels to achieve the purpose of electrical signal output. An oil level gauge is a measuring tool used to measure the height of liquid in a fuel tank. It is commonly used in various mechanical equipment such as cars, motorcycles, and ships to ensure that the fuel level is within a safe range and to promptly indicate the need for refueling. The structure of an oil level gauge usually consists of a float, a display, and a resistor, which can capture the height of the oil in the tank and reflect it on the display.

The oil level gauge usually includes a float or conductive wire connected to the circuit in the fuel tank. When the oil level drops to the predetermined water level, the float will lower to a specific position, triggering the electrical controller of the oil level gauge to issue a warning signal.

A level gauge typically includes one or more sensors installed at the bottom of a storage tank and connected to the liquid in the tank. When the liquid level rises or falls, the sensor of the liquid level gauge will sense the change in liquid level and send a signal to the controller to achieve liquid monitoring and alarm. A liquid level gauge is a measuring tool used to measure the height of general liquids, involving various chemical, food, and pharmaceutical industries. Its main function is to determine the remaining available liquid level in the storage tank by measuring the liquid level inside the tank. A liquid level gauge typically consists of a float, sensor, and controller, which can monitor the liquid level height in real time and convert it into a digital signal output to the controller to ensure that the device does not experience leakage or discharge issues.

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