High-Quality Combustible Gas Leak Detectors Factories & Factory

Precision Engineering, Global Compliance, and Enterprise-Grade Safety Automation Technologies.

Primary Series Showcase

High-Performance Detection Systems & Controls

Explore our certified product portfolio engineered for household safety, commercial smart parking, and demanding industrial zone classifications.

High-Quality JT-AT2006 Series Household Gas Detector

High-Quality JT-AT2006 Series Household Combustible Gas Detector Manufacturers, Factories

View Specifications
OEM China JT-AT2006 Series Household Gas Detector

OEM China JT-AT2006 Series Household Combustible Gas Detector - Reliable Suppliers from a Trusted Factory Supplier, Manufacturer

View Specifications
OEM AT2004BIV-CO Carbon Monoxide Gas Detector

OEM AT2004BIV-CO Carbon Monoxide Gas Detector - China Suppliers & Factory for Smart Car Parks Safety Solutions Manufacturers, Factory

View Specifications
High-Quality China PMC-X602C Gas Pressure Transmitter Controller

High-Quality China PMC-X602C Gas Pressure Transmitter Controller - Reliable Suppliers and Factory for Industrial Solutions Supplier, Manufacturer

View Specifications
OEM China IFD2020 Infrared Flame Detector

OEM China IFD2020 Infrared Flame Detector - Suppliers & Factory Direct for Real-Time Optical Path Sampling Supplier, Factory

View Specifications
High-Quality AT2032X Low Voltage Power Box

High-Quality AT2032X Low Voltage Power Box - High Quality from China Suppliers & Factory for Reliable Power Solutions Manufacturer, Factory

View Specifications
OEM Car Parks Carbon Monoxide Gas Detector

OEM AT2004BIV-CO Car Parks Carbon Monoxide Gas Detector Manufacturers, Manufacturer

View Specifications
OEM China JB-TB-AT2020DX Gas Detector Controller

OEM China JB-TB-AT2020DX Gas Detector Controller - Reliable Suppliers and Factory Solutions for Safety Monitoring Suppliers, Manufacturer

View Specifications
Industry Whitepaper

Combustible Gas Leak Detection: Principles of Design and Performance

In modern industrial processing, hazard mitigation starts with the early and accurate detection of combustible and toxic gases. Whether it is Liquefied Petroleum Gas (LPG), Compressed Natural Gas (CNG), methane (CH4), carbon monoxide (CO), or complex Volatile Organic Compounds (VOCs), the difference between a controlled response and a catastrophic explosion lies in milliseconds of sensor reaction time.

Critical Safety Metrics

Gas safety equipment must achieve strict compliance thresholds. The *Lower Explosive Limit (LEL)* denotes the minimum concentration of a gas that can propagate flame in the presence of an ignition source. High-grade detectors utilize advanced catalytic combustion, electrochemical, or non-dispersive infrared (NDIR) sensors configured to trigger alarms well below 10% LEL, allowing adequate time for automatic safety protocols to actuate shut-off valves and engage localized ventilation.

Xinhaosi Chengdu Factory and Office
Chengdu Factory & Office
Xinhaosi Deyang Factory
Deyang Factory
Corporate Authority

Company Profile & Intelligent Manufacturing

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 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.

Guided by the core mission of “Making Gas Safety Accessible Everywhere,” we consistently deliver high-performance, reliable products and customized solutions tailored to each client’s unique needs. Every item we manufacture undergoes rigorous quality control tests, and every service we provide is backed by our professional technical team, fully embodying our unwavering commitment to safeguarding gas safety across both industrial workplaces and residential environments.

Technical Strength Certification
E-E-A-T Compliance

Technical Strength & Calibration Laboratory

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.

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.

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.

20+
Years of R&D Expertise
50+
Patents & Copyrights
30%
Lower Equipment Failure Rate
CNAS
ISO/IEC 17025 Laboratory
Milestones

Company Development History

Two decades of continuous growth, technological innovation, and scaling global operations.

2003-2008: Startup Phase

  • Established in April 17th, 2003.
  • Launched the 1st generation of gas leak alarm & fire fighting products.
Startup Phase

2009-2012: Initial Scale Achievement

  • Started gas safety valve production.
  • Expanding on OEM business.
  • Moved to the office building in Longtan industrial park.
Initial Scale

2013-2016: Rapid Growth

  • 10 millions pcs gas detector sales achieved.
  • Moved into Chengdu factory building.
  • Completed sales & service network across China.
  • Launched the fire power monitoring system products.
Rapid Growth

2017-2020: Leading Up

  • Self-developed IoT platform launched.
  • Launched fire automatic alarm, emergency lighting, and evacuation systems.
  • Obtained high-tech enterprise certificate.
  • Qualified official supplier of China’s top 5 gas suppliers.
Leading Up

2021-2023: Steady Development

  • Started Deyang factory construction.
  • Established the Petrochemical & International business Division.
  • Awarded the title of Sichuan Provincial Technology Center.
Steady Development

2024—Future: Embrace the Future

  • Deyang factory construction completed and operation started.
  • Launched urban gas pipeline network monitoring products.
  • Launched wireless detection products.
  • Launched AI safety valve products.
Embrace the Future
Global Access

Localization Support & Regulatory Compliance

Navigating complex regional fire regulations and explosion protection directives is critical to cross-border deployment.

Explosion Protection Standards

Operating in hazardous locations requires ATEX and IECEx compliance. Our production processes ensure that devices designed for Class I Division 1 and 2, or Zone 1 and 2, meet flameproof (Ex d) or intrinsically safe (Ex i) requirements. This guarantees that internal sparks or heat cannot ignite the surrounding atmosphere.

Regional Fieldbus Protocols

Global SCADA systems demand diverse interfaces. We support multiple protocols, including standard 4-20mA analog loops, Modbus RTU (RS485), and IoT standards like LoRaWAN and NB-IoT. This ensures seamless integration with centralized PLCs and plant automation loops worldwide.

Functional Safety (SIL-2/3)

For Safety Instrumented Systems (SIS), our controllers and detectors comply with IEC 61508 / IEC 61511. This guarantees high Safe Failure Fractions (SFF) and low Probability of Failure on Demand (PFD), meeting the standard safety loops required in petrochemical processing.

Supply Chain

China Factory Infrastructure & Supply Chain Integration

Leveraging the world’s most advanced electronics manufacturing ecosystem to deliver cost-effective and highly reliable components.

Sourcing Resilience and Scale

Operating out of key industrial hubs in Chengdu and Deyang, Xinhaosi utilizes vertical supply chain integration. We control everything from raw PCB printing and automated SMT placement to final sensor calibration. By maintaining close ties with localized semiconductor and metallurgical ecosystems, we mitigate the risk of component shortages.

Automated Quality Assurance

Unlike small-scale workshops, our factories employ automated calibration chambers and AOI (Automated Optical Inspection) systems. This ensures that every residential gas sensor or industrial gas controller meets strict LEL tracking specifications. Additionally, our CNAS certification guarantees that our testing meets international ISO/IEC 17025 standards.

OEM/ODM Scalability

We provide extensive custom labeling, firmware optimization, and enclosure modifications to support major brands in global markets, ensuring quick times-to-market.

Supply Chain Key Metrics

  • Raw Material Lead Time: Under 15 Days
  • Production Throughput: Millions of units annually
  • Defect Rate (PPM): < 50 PPM (Parts Per Million)
  • Compliance Audits: Periodic TÜV, CNAS, & Bureau Veritas inspections
Procurement Insights

Enterprise Sourcing & Industry Trends

As the industrial landscape shifts toward automation, safety systems must adapt to smarter, more integrated networks.

IoT & Cloud Monitoring

Enterprise buyers are moving away from isolated alarms. Modern installations require wireless gas detectors connected to cloud-based monitoring panels, enabling remote monitoring of industrial parks and pipelines.

Total Cost of Ownership

When sourcing safety equipment, initial purchase cost is only one factor. Smart buyers prioritize low calibration drift, long sensor lifespans (typically 5+ years for catalytic bead sensors), and readily available replacement parts to reduce ongoing maintenance costs.

Integrated Safety Loops

Modern facilities require detectors that do more than just sound an alarm. Today's devices must interface directly with safety systems to automatically close emergency gas shut-off valves, start exhaust fans, and alert regional operations centers simultaneously.

Applications

Safety Scenarios in Industrial & Residential Environments

Tailored gas detection solutions engineered for the specific challenges of each environment.

Smart Car Parks & Garages

Enclosed parking structures pose a risk of toxic carbon monoxide (CO) accumulation. Implementing gas detectors like the AT2004BIV-CO helps optimize ventilation systems, engaging fans only when needed to save energy while maintaining air safety.

Petrochemical Processing Zones

Refineries and processing units operate in atmospheres with high explosive risks. Our explosion-proof detectors, including the GTYQ-AT0502 and AT0602, feature rugged IP66/IP67 enclosures designed to withstand harsh outdoor conditions.

Residential Safety & LNG Networks

For home environments, gas detectors like the JT-AT2006 and JT-AT2004A series provide reliable, continuous monitoring for methane or LPG leaks, triggering local alarms and automated shutoff systems.

Knowledge Base

Frequently Asked Questions (FAQ)

Expert answers to common questions about industrial and residential gas safety systems.

Q1: What is the difference between LEL and PPM in combustible gas detection?
PPM (Parts Per Million) measures low concentrations of gases, typically used for toxic gases like carbon monoxide (CO). LEL (Lower Explosive Limit) measures the concentration of combustible gases needed to create an explosion. For safety, alarms are set to trigger at a fraction of the LEL (commonly 10% LEL).
Q2: How often should combustible gas detectors be calibrated?
For industrial installations, we recommend calibrating detectors every 3 to 6 months to account for sensor drift. Residential detectors typically feature pre-calibrated sensors that provide maintenance-free operation for their designated service life (typically 5 years).
Q3: What makes a gas detector "explosion-proof"?
An explosion-proof rating (such as Ex d or ATEX certification) means the device enclosure is designed to contain any internal spark or explosion, preventing it from escaping and igniting the surrounding hazardous atmosphere.
Q4: Can these detectors integrate with building management systems (BMS)?
Yes. Our industrial controllers, such as the JB-TB-AT2020DX and JB-MK-AT2041/4G, support Modbus RTU communications and 4-20mA analog loops, allowing direct integration with most building management and DCS architectures.
Explosion-Proof & Controller Series

Hazardous Area Systems & Controls

Explore our certified products for explosion protection, flame detection, and centralized control systems.

High-Quality China Suppliers Household Combustible Gas Detector

High-Quality China Suppliers Factory JT-AT2004A/JY-AT2004A Series Household Combustible Gas Detector for Home Safety Manufacturer, Factories

View Specifications
OEM China Suppliers AT0602 Explosion Proof Gas Detector

OEM China Suppliers Factory AT0602 Explosion Proof Oxygen Toxic VOC Gas Detector for Safety Monitoring Manufacturers, Factories

View Specifications
OEM China Explosion Proof Combustible Gas Detector

OEM China GTYQ-AT0503/d Explosion Proof Combustible Gas Detector | Trusted Suppliers & Factory Options Factories, Factory

View Specifications
OEM China Suppliers JB-MK-AT2041 Interlock Control Box

OEM China Suppliers JB-MK-AT2041/4G Interlock Control Box from Factory for Enhanced Safety and Control Suppliers, Manufacturers

View Specifications
High-Quality China Explosion Proof Gas Detector GTYQ-AT0502

High-Quality China Explosion Proof Combustible Gas Detector GTYQ-AT0502 - Reliable Suppliers and Factory Solutions Supplier, Factory

View Specifications
High-Quality China AT2031X Low Voltage Power Box

High-Quality China AT2031X Low Voltage Power Box - Reliable Suppliers & Factory for High-Quality Electrical Solutions Suppliers, Manufacturer

View Specifications
High-Quality Explosion-proof Light and Sound Alarm BJX-24E/BJX-22E

High-Quality Explosion-proof Light and Sound Alarm BJX-24E/BJX-22E from China Suppliers and Factory for Safety Solutions Suppliers, Factories

View Specifications
OEM JB-TB-AT2020DX Gas Detector Controller

OEM JB-TB-AT2020DX Gas Detector Controller - Trusted China Suppliers & Factory for Reliable Safety Solutions Suppliers, Factory

View Specifications