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Infrared Electrochemical 4 Gas Multi Gas Tester Detector For Fire Service

Categories Multigas Detector
Brand Name: GZAIR
Model Number: M203 4 Gas
Certification: CE
Place of Origin: China
MOQ: 10
Price: $29 - $169
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
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Infrared Electrochemical 4 Gas Multi Gas Tester 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 ModelM203 portable multi gas detector
Sensor typeInfrared, catalytic,electrochemical
Size & Weight130*66*30mm / 300g
BatteryRechargeable lithium
AlarmsLED alarm @≥20cm
Buzzer alarm ≥95dB @30cm
Low power alarm
ChargingBy AC adapter or 5V USB port
DisplayColor LCD / OLCD
LCD readingReal-time concentration, battery indicator, time
BacklightAlways ON
Data logging (optional)Continuously data logging (1900 data at 0.1-10 configurable interval)
Charging time4-5 hours
Continuous working time> 12h
Working Temperature25℃ ~ +55℃, short time: -40℃ ~ +55℃
Sensor lifetimeinfrared: ≥5years;
Electrochemical: ≥2 years
Catalytic: ≥1 year
Ex proof signExib I
SamplingNatural diffusion
IP detreeIP54
ApprovalEx,MA,CMC,CE
Standard accessoriesUSB extension cord, charging adapter, calibration cap, calibration hose, stainless steel clip, hanging cord, leather case, manual
Optional accessoriesGas sampling pump, professional suitcase


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