In humid and saline atmospheric environments, metal structural components and electronic devices may suffer severe atmospheric corrosion, and even minor corrosion can cause circuit failures, leading to damage to electrical control equipment and even safety accidents. Furthermore, the accumulation of corrosion products can degrade high-voltage insulation performance and even cause creepage and ignition. Toensure the reliability of electronic equipment, it is necessary not only to monitor environmental temperature and humidity, but also to monitor the atmospheric corrosion rate and amount of key electronic materials, and optimize protective process parameters through feedback from monitoring data.The AMT/FSL-DQFS series is a precision resistance-type atmospheric corrosion monitor designed according to the ISO 9224-2012 standard. The monitor utilizes a thin-plate metal sensor and precision resistance measurement technology, combined with an alternating constant current excitation source and high-precision AV bridge principle, to achieve precise micro-resistance measurement. It boasts a resolution of 10 nm for metal corrosion thinning and can automatically compensate for environmental temperature drift, ensuring the stability and reliability of measurement results. The AMT/FSL-DQFS four-channel version can simultaneously measure the corrosion thinning and corrosion rate of four types of metal materials (such as carbon steel, stainless steel, copper alloy, aluminum alloy, etc.), and evaluate the environmental corrosion level based on the monitoring results.AMT/FSL-DQFS incorporates an RTC calendar clock and a lithium-ion battery, enabling automatic wakeup for measurement processes. It also supports atmospheric pressure, temperature, and humidity monitoring, making it suitable for studying the impact of temperature and humidity changes on metal corrosion rates. All monitoring data is backed up to the Flash ROM memory within the monitor. AMT/FSL-DQFS facilitates networked corrosion monitoring through wired or wireless methods and stores data on a cloud server. Only authorized users can access relevant data via a username and password.