Explore our core industrial and residential product catalog. Featuring high-precision calibration, intrinsically safe engineering, and seamless integration capabilities with municipal, commercial, and heavy industrial safety architectures.
Founded in 2003, Xinhaosi is one of the most influential and trusted brands in the global gas safety industry. Over the past two decades, we have steadily built a robust and comprehensive production and service system, which integrates cutting-edge R&D, intelligent manufacturing with advanced automation equipment, digital marketing across global channels, professional after-sales support with an experienced technician team, flexible OEM/ODM services, as well as CNAS-Accredited laboratory calibration services that meet international standards.
Our core mission is: "Making Gas Safety Accessible Everywhere." We consistently deliver high-performance, reliable products and customized solutions tailored to each client's unique needs, protecting both global municipal grids and extreme hazard environments.
Our diversified product portfolio covers industrial & residential gas detection & alarm systems, industrial & household gas solenoid valves, and urban gas pipeline network monitoring systems—all engineered to adapt to complex working environments and strict safety requirements. We produce and sell tens of millions of units annually, catering to a wide range of industries that demand reliable gas detection solutions, including oil & gas exploration and production, petrochemicals, urban gas distribution, automotive manufacturing, pharmaceuticals, new energy, steel production, and beverage processing.
Adhering to ISO9001 quality management system standards, Xinhaosi's core products have obtained a full range of authoritative certifications, including national compulsory Products Certification, explosion-proof certification, fire product certification, CPA measurement instrument type approval certificate, and international approvals such as CE and SIL. Additionally, Xinhaosi holds honors such as "National Quality Integrity Benchmark Enterprise", "National Quality Leading Enterprise in the Gas Alarm Industry," member of the China Fire Protection Association, and the main drafting organization for the national standard of solenoid valves, further confirming its industry influence and reputation.
Years of Safety R&D
Patents & IP Copyrights
Failure Rate Reduction
Global Annual Units Sold
Our in-house laboratory is accredited by the China National Accreditation Service for Conformity Assessment (CNAS), recognized both domestically and internationally under the ILAC-MRA framework. It operates in accordance with ISO/IEC 17025, the international standard for testing and calibration laboratories. It provides reliable and traceable testing services for gas detection and alarm products, solenoid valves, and related safety equipment. Test reports issued by the CNAS-accredited laboratory are widely accepted by regulatory authorities, certification bodies, and customers in China and overseas, helping to ensure product quality, safety compliance, and market access.
In the field of intellectual property, Xinhaosi has built a robust innovation system with over 50 patents and software copyrights. These patents cover core technological areas, including a graphical monitoring system for gas detection and alarm, which enables predictive maintenance based on historical data to reduce equipment failure rates by over 30%, and a solenoid valve with flow monitoring functionality that integrates flow detection and alarm capabilities. The company also pioneered China's first networked bus-type gas leakage monitoring system and the only maximum-point gas leakage monitoring system certified by the Ministry of Public Security, demonstrating its leading position in cutting-edge technological research.
Sulfur Dioxide (SO2) represents one of the most critical toxic gases targeted for tracking and mitigation under modern global environmental frameworks. High-quality SO2 sensors utilize electrochemical, non-dispersive infrared (NDIR), or ultra-violet resonance technology to detect parts-per-million (ppm) levels of flue gas discharge, smelting combustion, and refinery leakage. Decoupling the high-quality manufacturing process highlights why modern global procurement departments partner with leading China-based sensor factories:
By leveraging native silicon manufacturing clusters, chemical reagent production lines, and high-purity noble metal processing (such as platinum catalysts for electrochemical reaction electrodes), Chinese factories ensure continuous access to high-grade industrial parts. This drastically reduces sensor manufacturing cycle times and stabilizes component costs.
With massive design facilities and on-site testing chambers, Chinese plants adapt base sensor units to custom geometries, electrical outputs (4-20mA, Modbus RS485, HART protocol), or extreme environments. Xinhaosi’s engineering team enables swift conversion from client specification sheets to functional, field-tested prototypes.
Unlike pure sensor assembly lines, top-tier factories construct the entire ecosystem—linking local SO2 sensing chips to intelligent data gateways (like the FDG-X304SE series) and pneumatic emergency shut-off valves. This provides complete process safety automation from detection to mitigation.
Over the past twenty years, our manufacturing and research frameworks have scaled from local fire-safety products to robust industrial safety solutions. Review our timeline of execution and strategic breakthroughs:
● Established in April 17th, 2003. Launched our first-generation gas leakage alarm technologies and fire-fighting auxiliary products, establishing core quality standards.
● Initiated industrial-grade safety valve production, laying foundations for OEM/ODM global operations. Expanded operational footprint with new offices in Longtan Industrial Park.
● Achieved over 10 million units sold in gas alarm products. Relocated to our primary Chengdu manufacturing facility. Established nationwide sales and installation networks.
● Launched our proprietary, self-developed IoT gas monitoring software platform. Certified as an official vendor for China's top five gas energy groups.
● Commenced construction of our massive Deyang intelligent factory. Created dedicated business divisions for petrochemical security and international export compliance.
● Fully functional Deyang factory operation. Launched urban gas pipeline leak monitoring arrays, wireless sensor transmitters, and next-generation AI-driven safety shut-off systems.
Modern industrial architectures demand that SO2 monitoring platforms operate with zero drift, minimal cross-sensitivity to H2S or CO, and robust physical protection. We deliver specialized macro safety setups adapted to multiple hazard contexts:
Coal-fired power generation and incinerators must strip SO2 from exhaust lines. Our sensors monitor pre- and post-scrubbing concentrations, checking desulfurization efficiency. This provides critical real-time feedback loop telemetry to process control computers.
Processing sulfide ores (copper, lead, zinc) releases hazardous SO2 plumes. Plant safety protocols require dense, wireless sensor matrices to monitor smelting floors. These link directly with high-volume ventilation and emergency alarm arrays.
SO2 acts as an antioxidant and antimicrobial preservative in grape processing and winemaking. Precise, low-concentration gas monitors preserve worker safety inside closed cellars and barrel rooms, preventing toxic gas accumulation.
Combining high-precision electrochemical SO2 detectors, smart wireless hubs, and high-speed solenoid valves, Xinhaosi creates a closed-loop mitigation response. If an SO2 threshold is breached, the system initiates automated alerts and isolates pipeline valves, reducing downstream contamination risks.
International procurement teams require manufacturers to comply with rigorous qualification audits. Our production lines are optimized to meet the most demanding engineering and supply chain standards:
Every sensor output is verified using traceable standard gas mixtures. CNAS-accredited testing reports guarantee that calibration procedures comply with ISO/IEC 17025 standard procedures.
Our industrial SO2 gas transmitters carry certifications like Ex d IIC T6 Gb and SIL2. This permits installation in challenging offshore platforms, petroleum refineries, and hazardous underground shafts.
With specialized internal designs that guard against dust and moisture, our sensor modules achieve a high Mean Time Between Failures (MTBF). This lowers field maintenance overheads and extends operational lifespans.
Get technical insights regarding the deployment, operation, and maintenance of professional-grade Sulfur Dioxide detectors:
Review our specialized array of control heads, transmitter units, safety valves, and high-speed data gateways designed for demanding industrial operations.
