Guangzhou GZAIR Instruments Co., Ltd.
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Advanced Multi-Gas Monitor – Combustible, Oxygen, Hydrogen Sulfide & CO
Protect your workforce and workplace with the Advanced Multi-Gas Monitor, designed to deliver fast, accurate, and reliable detection of the most common industrial gas hazards: Combustible Gases (LEL), Oxygen (O₂), Hydrogen Sulfide (H₂S), and Carbon Monoxide (CO). Engineered for professional use in high-risk environments, this compact and durable device provides continuous real-time monitoring, clear visual feedback, and instant alarms to alert users of any dangerous gas presence.
Ideal for confined space entry, oil & gas operations, chemical plants, and industrial safety applications, this monitor is a must-have for any team working in potentially hazardous conditions.
Key Features:
Simultaneous 4-Gas Detection: Continuously tracks and displays concentrations of LEL, O₂, H₂S, and CO on a single easy-to-read interface.
High Sensitivity Sensors: Advanced electrochemical and catalytic sensors offer fast response times and accurate readings, even in rapidly changing environments.
Real-Time Data Display: Large backlit LCD shows current gas levels, battery status, and alarm conditions at a glance.
Triple Alarm System: Built-in visual (LED), audible (≥ 90 dB), and vibration alerts ensure users are notified immediately when thresholds are exceeded.
Rugged & Weather-Resistant: Built tough for harsh environments with a shock-resistant, water- and dust-proof design.
| Product Name | 4 gas detector |
| Model | X-4 |
| EX Detection range/Resolution | (0~100)%LEL, 1%LEL |
| H2S Detection range/Resolution | (0~100)PPM, 1PPM |
| CO Detection range/Resolution | (0~1000)PPM, 1PPM |
| O2 Detection range/Resolution | (0~30)%VOL, 0.1%VOL |
| EX Low alarm/High alarm | 20%LEL, 50%LE |
| H2S Low alarm/High alarm | 10PPM, 20PPM |
| CO Low alarm/High alarm | 50PPM, 200PPM |
| O2 Low alarm/High alarm | 19.5%VOL, 23.5%VOL |
| Error | ±5% FS (combustible),±10% FS (carbon monoxide),±10% FS (hydrogen sulfide) |
| Response time | T<30s |
| Indicate method | LCD indicates the real time data and system status, Light-emitting diode, sound, vibrate indication alarm, failure, and lack of voltage Working |
| Working Temperature | -4F-122F |
| Working Humidity | < 95 %RH (non-condensing) |
| Power Source | DC 3.7 V Li-lon Rechargeable battery, 2000 mAh |
| Explosion proof mark | Ex ib IIB T3 Gb |
| Charging time | 3~5 hrs |
| Standby time | 15~18 hrs under a standard situation |
| Life of Sensors | EX, H2S, C0---3 years; 02---5 years |
| Dimension | 5.2*1.9*2.2 inch |
| Weight | 17.6 ounce |
