SGA-700A Intelligent Gas Sensor Module

The SGA-700A is a high-precision diffusion-type intelligent gas sensor module released in 2015, specially developed for trace gas and high-accuracy detection scenarios. It is equipped with world-class imported sensing cores and excellent signal processing circuits, supporting ppb-level ultra-high resolution measurement. Adopting 7-pin standard interface and natural diffusion sampling mode, the module is factory pre-calibrated for plug-and-play use. It is compatible with multiple detection principles and can detect more than 1000 kinds of gases. With aluminum alloy housing, IP55 protection and intrinsically safe performance, it is the preferred module for high-end environmental monitoring, flue gas analysis and trace toxic gas detection equipment.

This module is equipped with high-precision sensing elements, matching electrochemical, catalytic combustion, infrared, PID and other technologies according to different detected gases. Natural diffusion sampling is adopted, and gas enters the sampling chamber spontaneously. The built-in high-efficiency temperature and humidity compensation circuit greatly reduces measurement errors caused by environmental changes. There is no active self-cleaning structure. The sealed and streamlined shell prevents dust, moisture and pollutants from entering the internal components, effectively reducing maintenance work and ensuring long-term stable operation in outdoor and industrial environments.

It realizes ppb-level ultra-high resolution, which can accurately capture trace gas concentration changes and meets high-precision detection requirements. Equipped with top-grade imported sensing cores, the product has outstanding stability, repeatability and long service life. The standard 7-pin universal interface ensures good compatibility and convenient replacement among matched devices. Natural diffusion structure is simple and reliable with low failure rate. It outputs 0-5V voltage and TTL dual signals, and supports optional 4-20mA current output for richer system integration. Comprehensive temperature and humidity compensation minimizes measurement drift in complex environments. Factory pre-calibration saves users’ R&D and calibration costs. IP55 protection and intrinsically safe design adapt to various industrial and hazardous working sites.

Used for high-precision ambient air quality stations, flue gas and waste gas online monitoring, odor and trace toxic gas detection, laboratory environmental monitoring, high-end portable gas analyzers and professional environmental protection monitoring systems.