The CR6061 digital liquid level sensor is based on the principle of RF capacitance measurement. It uses tomography to dynamically analyze various parameters of the sensor in the medium, and automatically compensates accurately. The output signal changes linearly with the change of liquid level. The whole machine does not have any elastic parts and movable parts. It is resistant to impact and easy to install. It can be installed in various occasions to accurately measure the oil level of gasoline, diesel oil, hydraulic oil and other liquids of various corrosive liquids.