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| Categories | Multigas Detector |
|---|---|
| Brand Name: | GZAIR |
| Model Number: | X-4 |
| 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 |
| Detected Gases: | Combustible (LEL), O₂, H₂S, CO |
| Explosion-Proof Mark: | Ex ib IIB T3 Gb |
| Alarm Types: | Audible (≥ 90 dB), visual (LED), and vibration |
| Power Supply: | Rechargeable lithium-ion battery |
| Company Info. |
| Guangzhou GZAIR Instruments Co., Ltd. |
| Verified Supplier |
| View Contact Details |
| Product List |
Explosion-Proof 4-Gas Detector for Workplace Gas Hazard Protection
Ensure maximum safety in high-risk environments with the
Explosion-Proof 4-Gas Detector, a rugged and reliable solution for
continuous monitoring of Combustible Gases (LEL), Oxygen (O₂),
Hydrogen Sulfide (H₂S), and Carbon Monoxide (CO). Designed to
withstand the toughest industrial conditions, this detector is
ideal for confined spaces, hazardous zones, and workplace safety
compliance across sectors like oil & gas, mining, manufacturing,
and chemical processing.
Equipped with high-precision sensors and housed in a durable
explosion-proof casing, this 4-gas monitor offers real-time data,
audible/visual/vibration alarms, and long-lasting performance—even
in extreme environments.
Key Features:
Simultaneous 4-Gas Monitoring: Detects and displays real-time
levels of LEL (combustible gases), O₂, H₂S, and CO, providing early
warning of dangerous gas leaks or oxygen deficiency.
Explosion-Proof & Intrinsically Safe Design: Ex ib IIB T3 Gb
marked, ensuring safe operation in flammable or explosive
atmospheres.
Audible, Visual & Vibration Alarms: Immediate alerts when gas
levels exceed preset thresholds—ideal for noisy, low-visibility, or
confined space conditions.
High-Precision Sensors: Fast response times and accurate readings
with electrochemical and catalytic sensors for reliable hazard
detection.
Large LCD Display: Easy-to-read backlit screen shows all gas
concentrations, battery level, and alarm status at a glance—even in
dark environments.
Rechargeable Battery: Long-lasting 2000mhA lithium-ion battery
supports extended field use with quick charging capabilities.
Data Logging & Calibration: Optional data logging function and easy
sensor calibration help maintain compliance with safety
regulations.
| 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 |






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