Liquid level floats applied to methyl alcohol and non-contact-type methyl alcohol liquid level sensor

The invention discloses liquid level floats applied to methyl alcohol and a non-contact-type methyl alcohol liquid level sensor. Each liquid level float includes a float body and a stainless steel protective layer or a composite protective layer which covers the surface of the float body. According to the methyl alcohol liquid level sensor, the liquid level floats are arranged on an information pipe of a traditional structure and improved. The two liquid level floats both have great anticorrosion performance and antileakage performance. Additionally, when the liquid level sensor is assembled,the integrated functions of sucking back methyl alcohol, adjusting internal and external air pressure of a tank, filtering out methyl alcohol liquid and indicating the liquid level are achieved, the applicability of a product is improved, holes formed in an alcohol returning pipe on the oil tank are reduced, and the installation procedures are simplified. Moreover, two provided filtering net assemblies different in struct