Portable Multi Gas Detector-4-in-1

The combustible gas leak detector (hereinafter referred to as the leak detector) is a fully intelligent, high-performance device designed for industrial gas safety monitoring. It adopts advanced large-scale integrated circuit technology, international-standard intelligent design, and proprietary digital-analog hybrid communication technology, ensuring highly reliable and precise gas detection.

The leak detector features free diffusion gas detection with high-quality, highly sensitive sensors, delivering excellent sensitivity, rapid response, and outstanding repeatability. Its intuitive design makes it easy to operate and maintain, fully meeting the rigorous demands of industrial safety monitoring.

The housing is constructed from high-strength engineering plastic, providing durability, a premium feel, and robust protection. The device is waterproof, dustproof, and explosion-proof, making it suitable for a wide range of harsh industrial environments.

Gas Detectors Description  

4-in-1 Multi Gas Detector Features

  • 4-in-1 Gas Detection: Monitors LEL, O₂, CO, and H₂S simultaneously.

  • Real-Time Alarms: Audible, visual, and vibration alerts for instant gas leak notifications.

  • Portable Design: Lightweight and ergonomic, easy to carry or clip-on for field operations.

  • High-Precision Sensors: Advanced sensors ensure accurate, stable readings with low maintenance.

  • Clear Display: Large OLED/LCD screen shows gas concentrations and alarm status clearly.

  • Durable Build: Dustproof and waterproof design suitable for harsh industrial environments.

Portable multi gas detector used in industrial environment Handheld multi gas detector for on-site gas monitoring
Customizable multi gas detector for multiple gas detection Portable multi gas detector supporting various gases

Detector Multi Gas-Detectable Gas Types

Gas TypeMeasuring RangeAlarm TypeTypical Application
LEL (Combustible Gas)0–100% LELHigh/Low ConcentrationOil & gas pipelines, chemical plants, mining
O₂ (Oxygen)0–30%High/Low ConcentrationConfined spaces, poorly ventilated areas
CO (Carbon Monoxide)0–1000 ppmHigh ConcentrationBoilers, warehouses, combustion equipment
H₂S (Hydrogen Sulfide)0–100 ppmHigh ConcentrationOil industry, wastewater treatment, mines

Multi Gas Detectors-Applications & Industries

  • Oil & Gas: Oil extraction, natural gas pipelines, LNG storage and transportation

  • Chemical & Petrochemical: Chemical plants, refineries, laboratories

  • Mining & Tunneling: Underground mines, tunnels, confined construction areas

  • Confined Spaces: Tanks, pipes, underground chambers

  • Environmental Safety: Warehouses, wastewater plants, hazardous chemical areas

Multi gas detector applications in power plants and chemical plants Portable multi gas detector for industrial safety monitoring
Portable multi gas detector structure diagram Handheld gas detector components and dimensions

Portable Multi Gas Detector Structure

  • Ergonomic and lightweight for easy portability

  • Simple buttons for quick operation in the field

  • High-visibility OLED/LCD screen

  • Dustproof and waterproof (IP65/IP66)

  • Clip-on or chest-mounted design compatible with safety harnesses

Gas Detectors Parameter  

ParameterSpecificationNotes / Highlights
Detectable GasesCH₄, O₂, CO, H₂SCustomizable gas options available for specific industrial needs
Standby Time>8 hoursLong battery life for continuous field operation
Power SupplyLithium battery 2000mAhRechargeable, stable power source
Response TimeLEL (EX) < 30 s; O₂ < 20 s; CO/H₂S < 60 sFast detection for immediate safety alerts
Alarm ModesSound / Light / Vibration / DisplayMulti-level alarms ensure prompt notification
DisplayFull-color LCDClear, easy-to-read gas concentration and status
Sensor LifespanO₂: 5 years; Other gases: 2 yearsDurable, long-lasting sensors reduce maintenance costs
Product Size130 × 65 × 45 mmCompact design, includes back clip for portability
Product Weight280 gLightweight for easy field carrying

Instrava OEM/ODM

Reliable Instruments. Solutions That Fit Your Application.

Instrava is focused on delivering reliable industrial solutions through carefully curated products, application-driven optimization, and flexible customization. We select proven instruments from trusted manufacturers to ensure consistent quality, optimize solutions based on real working conditions to solve practical challenges, and provide tailored configurations to meet specific application needs.

By combining selection expertise with application understanding, Instrava helps customers reduce risk, improve efficiency, and achieve dependable results in complex industrial environments.

symbolizing trust and the beginning of a long-term partnership

Related Product Recommendations  

The portable multi gas detector can simultaneously monitor LEL (combustible gas), O₂ (oxygen), CO (carbon monoxide), and H₂S (hydrogen sulfide). For OEM/ODM customization, additional gas types can be integrated based on client requirements. This flexibility makes it ideal for confined spaces, chemical plants, oil & gas facilities, and mining operations.

The response time is industry-leading: LEL <30 seconds, O₂ <20 seconds, CO/H₂S <60 seconds. Its high-sensitivity sensors provide accurate readings with excellent repeatability, ensuring rapid alerts to protect personnel and assets. Multi-mode alarms include sound, light, vibration, and display notifications for immediate awareness.

es, the multi gas detector 4 gas OEM/ODM version supports full customization:

  • Logo and color branding for corporate identity

  • Customizable alarm thresholds and sensor calibration

  • Optional connectivity modules (Bluetooth, GSM, wireless)

  • Explosion-proof or corrosion-resistant designs for harsh environments
    This makes it perfect for B2B clients seeking tailored multi gas detectors for industrial safety.

The portable multi gas detector is equipped with a rechargeable 2000mAh lithium battery, providing more than 8 hours of standby time. This ensures uninterrupted monitoring during long shifts or extended field operations, meeting industrial safety requirements efficiently.

The detector is designed with high-strength engineering plastic, providing impact resistance, waterproofing, dustproofing (IP65/IP66), and explosion-proof protection. Its compact size (130×65×45 mm) and lightweight design (280g) make it highly portable while maintaining robust performance in harsh industrial conditions.

The O₂ sensor lasts up to 5 years, while other sensors (LEL, CO, H₂S) typically last 2 years under normal usage. For OEM/ODM clients, pre-calibrated sensors and customizable maintenance schedules can be provided, reducing downtime and ensuring reliable, high-precision detection for industrial safety applications.

Why Choose Instrava

Built on Consistency, Not Claims

Focused on Industrial Applications

We specialize in industrial analysis and detection, with a clear understanding of real-world operating environments and requirements.

Strict Product Selection Criteria

Every instrument is evaluated based on performance, stability, and application suitability—not just specifications or pricing.

Reliable Supply & Quality Consistency

We work with trusted manufacturers to ensure stable supply, consistent quality, and dependable delivery.

Practical, Experience-Based Support

Our recommendations are grounded in application understanding, helping customers avoid common issues and achieve reliable results.

Instrava is built to reduce uncertainty—so every decision you make is clearer, safer, and more reliable.

Industrial measurement scene showing a worker using a precision measuring instrument to measure and mark material on a workbench, demonstrating the practical application of measuring instruments in manufacturing and processing.

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