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Gas Detectors
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.
Detector Multi Gas-Detectable Gas Types
| Gas Type | Measuring Range | Alarm Type | Typical Application |
|---|---|---|---|
| LEL (Combustible Gas) | 0–100% LEL | High/Low Concentration | Oil & gas pipelines, chemical plants, mining |
| O₂ (Oxygen) | 0–30% | High/Low Concentration | Confined spaces, poorly ventilated areas |
| CO (Carbon Monoxide) | 0–1000 ppm | High Concentration | Boilers, warehouses, combustion equipment |
| H₂S (Hydrogen Sulfide) | 0–100 ppm | High Concentration | Oil 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
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
| Parameter | Specification | Notes / Highlights |
|---|---|---|
| Detectable Gases | CH₄, O₂, CO, H₂S | Customizable gas options available for specific industrial needs |
| Standby Time | ＞8 hours | Long battery life for continuous field operation |
| Power Supply | Lithium battery 2000mAh | Rechargeable, stable power source |
| Response Time | LEL (EX) < 30 s; O₂ < 20 s; CO/H₂S < 60 s | Fast detection for immediate safety alerts |
| Alarm Modes | Sound / Light / Vibration / Display | Multi-level alarms ensure prompt notification |
| Display | Full-color LCD | Clear, easy-to-read gas concentration and status |
| Sensor Lifespan | O₂: 5 years; Other gases: 2 years | Durable, long-lasting sensors reduce maintenance costs |
| Product Size | 130 × 65 × 45 mm | Compact design, includes back clip for portability |
| Product Weight | 280 g | Lightweight for easy field carrying |
Gas Detectors OEM/ODM
Multi Gas Detector 4 Gas – OEM / ODM
The multi gas detector 4 gas is a portable, industrial-grade safety device designed for real-time monitoring of LEL (combustible gas), O₂ (oxygen), CO (carbon monoxide), and H₂S (hydrogen sulfide). Engineered for reliability, precision, and durability, it is ideal for confined spaces, chemical plants, oil & gas operations, mining, and other industrial environments.
OEM / ODM Customization
Branding & Design: Custom logo, colors, and packaging
Gas & Alarm Settings: Configurable gas types, alarm thresholds, and sensor lifespan
Connectivity Options: Optional Bluetooth, GSM, or wireless modules for remote monitoring
Special Environments: Explosion-proof, corrosion-resistant, waterproof designs
Pre-calibration & Maintenance: Factory-calibrated sensors and customizable service schedules
Why Choose This Detector
Ensures workplace safety and compliance in harsh industrial conditions
Flexible customization for corporate projects and bulk orders
Reliable, high-precision performance with low maintenance costs
Ideal for B2B buyers seeking OEM/ODM multi gas solutions
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
By choosing Instrava, you gain a partner with a deep understanding of industrial applications and the expertise to meet today’s operational challenges.
Our role extends beyond products—we support your success through dependable solutions and long-term commitment.
Engineering-Driven Innovation
Innovation at Instrava is guided by real industrial requirements. We continuously refine our technologies to address evolving operational challenges, ensuring practical and reliable performance in demanding environments.
Application-Specific Customization
We provide engineering-level customization to match specific process conditions. From measurement range and materials to output signals and installation options, our solutions are configured to fit real applications.
Proven Quality and Reliability
Quality and reliability are fundamental to every Instrava product. Manufactured under strict quality control and thoroughly tested, our instruments deliver accurate, stable, and long-term performance.
Global Capability with Local Support
Instrava combines global engineering expertise with responsive local support, ensuring our partners benefit from internationally aligned technology and timely regional service.
Comprehensive Product Portfolio
Our broad portfolio of measurement and control instruments enables us to address a wide range of industrial needs, providing integrated solutions from a single, reliable source.
Partner-Oriented Engineering Support
We work closely with our partners from technical consultation to after-sales support. Our focus is on delivering solutions that create lasting value and support long-term operational success.
