Portable Four-in-One Gas Detector
This portable four-gas detector supports simultaneous monitoring of 1–4 gases, featuring switchable diffusion and external pump suction modes. Designed with intrinsically safe protection and large data storage, it is ideal for industrial safety monitoring.
Key Features
Simultaneous detection of 1–4 gases
Multiple unit options: umol/mol, ppm, mg/m³, %Vol, %LEL
Switchable diffusion and pump modes (integrated external pump design)
Man-down alarm
Standard ≥200,000 data records (expandable)
Real-time, timed, or alarm-only data storage
On-device data viewing/deletion & USB export
3.7V 2800mAh or 7.4V 1400mAh rechargeable battery
Data recovery & factory reset
Max/Min/TWA/STEL display
Alarm types: sound, light, vibration combinations
Alarm categories: gas concentration, low voltage, fault, pump blockage
Automatic zero tracking
Multi-point calibration
Temperature compensation
Bilingual interface (Chinese/English)
Intrinsically safe Ex ia IIC T4 Ga
IP66 protection rating
Technical Specifications
| Item | Specification |
| Gas Types | 1–4 gases (CO, H₂S, O₂, combustible gas, CO₂, VOC, etc.) |
| Detection Principle | Electrochemical, Catalytic, Infrared, Thermal Conductivity, PID |
| Measuring Range | 0–50000ppm; 100%LEL; 20%/50%/100%Vol |
| Resolution | 0.001–1ppm; 0.1%LEL; 0.01%Vol |
| Accuracy | ≤±3% F.S |
| Linearity | ≤±2% |
| Response Time | T90 ≤30s |
| Operating Temp | -20°C to +55°C (limit -40°C to +70°C) |
| Humidity | 10–95%RH |
| Power Supply | DC3–8.4V |
| Battery | 3.7V 2800mAh / 7.4V 1400mAh |
| Display | 2″ LCD |
| Detection Mode | Diffusion / Pump |
| Communication | Type-C (charging dock included) |
| Data Storage | ≥200,000 records |
| Protection | IP66 |
| Explosion-proof | Ex ia IIC T4 Ga |
| Dimensions | 90×70×38mm |
| Weight | 200g (diffusion) / 300g (with pump) |
