HDL604 anti-corrosion liquid level transmitter adopts PTFE cable, which can measure strong acid and alkali liquid. The front-end protective cap plays the role of protecting the sensor diaphragm. It can also make the liquid contact the diaphragm smoothly. The ventilation pipe is connected to the outside in the cable, and the internal structure is designed to prevent condensation. HDL604 has built-in micro signal processing circuit, which can carry out remote transmission. Has good stability and reliability.