The AMT/FSL-DZTZ resistance probe corrosion monitor is suitable for continuous corrosion monitoring in gas, liquid, and complex multiphase systems involving oil, water, and gas, enabling the acquisition of data such as corrosion rate, corroded amount, and corrosion margin. The instrument utilizes a high-speed, lowpower MCU unit and a high-precision, low-power 24-bit AD converter, achieving a resolution of up to 0.06/1,000,000. By utilizing AC excitation source technology and the AV bridge principle, it achieves high microresistance measurement resolution, with corrosion resolution reaching 0.01% of the sensing element‘s lifespan. The built-in temperature compensation circuit minimizes the impact of temperature on measurement data.