The immersion type liquid level sensor is finely packaged using high-precision diffused silicon sensors. This product adopts a specially designed waterproof ventilation cable, which has undergone special anti condensation treatment, and is tightly and reliably packaged. It also utilizes advanced circuit linearity and temperature compensation technology to lower its temperature drift coefficient, stronger anti-interference ability, accurate measurement, and good stability. It can be directly put into liquids such as water and oil for long-term engineering operations. The transmitter embodies superior assembly technology, with a compact, sturdy, lightweight, easy to install, convenient to use, and maintenance free structure; The zero range can be continuously adjusted externally, with a wide range of migration.