Guangzhou GZAIR Instruments Co., Ltd.
| Payment Terms | D/A,D/P,T/T,Western Union,MoneyGram |
| Supply Ability | 10000 pieces per month |
| Delivery Time | 5-8 work days |
| Packaging Details | 48cm*44cm*39.5cm/carton |
| Product Model | M203 portable multi gas detector |
| Sensor type | Infrared, catalytic,electrochemical |
| Size & Weight | 130*66*30mm / 300g |
| Battery | Rechargeable lithium |
| Brand Name | GZAIR |
| Model Number | M203 4 Gas |
| Certification | CE |
| Place of Origin | China |
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Product Specification
| Payment Terms | D/A,D/P,T/T,Western Union,MoneyGram | Supply Ability | 10000 pieces per month |
| Delivery Time | 5-8 work days | Packaging Details | 48cm*44cm*39.5cm/carton |
| Product Model | M203 portable multi gas detector | Sensor type | Infrared, catalytic,electrochemical |
| Size & Weight | 130*66*30mm / 300g | Battery | Rechargeable lithium |
| Brand Name | GZAIR | Model Number | M203 4 Gas |
| Certification | CE | Place of Origin | China |
| High Light | electrochemical multi gas tester ，Infrared multi gas tester ，multi gas detector for fire service | ||
Industrial-Grade 4-Gas Detector for Confined Spaces and High-Risk Areas
Protect your team with the Industrial-Grade 4-Gas Detector, specifically designed for confined spaces and high-risk industrial environments. This rugged, portable detector simultaneously monitors four critical gases—Oxygen (O₂), Carbon Monoxide (CO), Hydrogen Sulfide (H₂S), and Combustible Gases (LEL)—ensuring comprehensive safety in real time.
Engineered with precision sensors and a durable, shock-resistant housing, this device delivers fast, accurate readings in challenging conditions such as tunnels, tanks, silos, wastewater plants, and oil & gas facilities. The bright digital display and intuitive interface make it easy to operate, even while wearing protective gear.
With high-decibel audible alarms, flashing LEDs, and vibration alerts, the detector ensures that workers are immediately notified of dangerous gas levels. The unit is IP-rated for water and dust resistance, and includes a long-lasting rechargeable battery to support extended field use.
Key Features:
Simultaneous detection of O₂, CO, H₂S, and LEL gases
Real-time monitoring with high-accuracy sensors
Triple alert system: audible, visual, and vibration
Compact, lightweight, and intrinsically safe design
Rechargeable battery with long operational runtime
Data logging and optional wireless communication (Bluetooth/WiFi/LoRa)
Ideal for confined spaces, industrial plants, emergency response, and hazmat teams
Ensure safety and compliance with this essential gas detection solution for high-risk work zones.
| Product Model | M203 portable multi gas detector |
| Sensor type | Infrared, catalytic,electrochemical |
| Size & Weight | 130*66*30mm / 300g |
| Battery | Rechargeable lithium |
| Alarms | LED alarm @≥20cm Buzzer alarm ≥95dB @30cm Low power alarm |
| Charging | By AC adapter or 5V USB port |
| Display | Color LCD / OLCD |
| LCD reading | Real-time concentration, battery indicator, time |
| Backlight | Always ON |
| Data logging (optional) | Continuously data logging (1900 data at 0.1-10 configurable interval) |
| Charging time | 4-5 hours |
| Continuous working time | > 12h |
| Working Temperature | 25℃ ~ +55℃, short time: -40℃ ~ +55℃ |
| Sensor lifetime | infrared: ≥5years; Electrochemical: ≥2 years Catalytic: ≥1 year |
| Ex proof sign | Exib I |
| Sampling | Natural diffusion |
| IP detree | IP54 |
| Approval | Ex,MA,CMC,CE |
| Standard accessories | USB extension cord, charging adapter, calibration cap, calibration hose, stainless steel clip, hanging cord, leather case, manual |
| Optional accessories | Gas sampling pump, professional suitcase |
Company Details
Business Type:
Manufacturer
Year Established:
2003
Total Annual:
45,000,000-50,000,000
Employee Number:
500~600
Ecer Certification：
Verified Supplier
Company Overview: At GZAIR, we specialize in providing cutting-edge IoT (Internet of Things) air quality monitoring solutions designed to improve environmental health and ensure safety across a wide range of sectors. From industrial sites and office buildings to schools, healthcare facilities,... Company Overview: At GZAIR, we specialize in providing cutting-edge IoT (Internet of Things) air quality monitoring solutions designed to improve environmental health and ensure safety across a wide range of sectors. From industrial sites and office buildings to schools, healthcare facilities,...
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