Overview
This 4-in-1 Multi-Gas Detector is a portable and reliable safety device designed to continuously monitor Oxygen (O₂), Combustible Gas (LEL), Carbon Monoxide (CO), and Hydrogen Sulfide (H₂S). Equipped with a clear LCD, it shows real-time concentration levels for all four gases simultaneously. The detector features user-configurable high and low alarms, along with STEL and TWA alarm functions, ensuring comprehensive safety monitoring. With both audio and visual alerts, it provides instant warnings when gas levels exceed safe limits. Compact, rechargeable, and durable, this detector is ideal for industrial, commercial, and confined space applications.
Features
- Detects 4 types of gases: Carbon Monoxide (CO), Hydrogen Sulfide (H₂S), Oxygen (O₂), and Combustible Gas (LEL).
- Made with premium materials and top-quality electronic components for high sensitivity and accurate measurement.
- Compact, lightweight, and ergonomic design for convenient carrying and use.
- Built-in 2500mAh lithium-ion battery supports up to 8 hours of continuous operation (about 6 hours with an external gas sampling pump).
- Backlit display ensures clear visibility even in dark environments.
- Dual alarm modes: audio alerts and on-screen icons.
- Multiple functions, including gas monitoring, peak value display, low alarm setting, high alarm setting, and TWA alarm mode.
- Ideal for use in petroleum, chemical, metallurgy, refining, and other industrial environments.
Technical Specifications
| Type | Multi-Gas Meter |
| Color | Yellow |
| Material / Housing | ABS, rugged and impact-resistant |
| Detected Gases & Ranges | – Carbon Monoxide (CO): 0–999 ppm – Hydrogen Sulfide (H₂S): 0–500 ppm – Oxygen (O₂): 0–30% VOL – Combustible Gas (LEL): 0–100% |
| Detection Principle | Electrochemical (CO, H₂S, O₂), Catalytic combustion / Semiconductor (Combustible Gas) |
| Resolution | CO: 1 ppm H₂S: 1 ppm O₂: 0.1% VOL Combustible Gas: 1% LEL |
| Accuracy / Precision | ±2–3% FS |
| Response Time (T90) | ≤ 15 seconds |
| Recovery Time | ≤ 60 seconds |
| Sensor | High-precision imported multi-gas sensors |
| Sensor Lifetime | 2–3 years typical (depending on usage) |
| Operation Current | 220 mA |
| Short Circuit Current | ≤ 3 A |
| Operation Voltage | 3.7 V |
| Maximum Open Circuit Voltage | ≤ 4.2 V |
| Battery Type | Rechargeable Lithium Battery |
| Battery Capacity | 2500 mAh |
| Battery Life | 15–20 hours continuous operation |
| Charging Time | 4–6 hours |
| Display Type | Segment-type LCD with backlight |
| Alarm Modes | Audible (≥90 dB), Visual (LED), Vibration |
| Alarm Thresholds | Configurable per gas |
| Operating Temperature | 50°F to 122°F (10°C to 50°C) |
| Storage Temperature | 32°F to 104°F (0°C to 40°C) |
| Operating Humidity | 15% ~ 95% RH (non-condensing) |
| Ingress Protection | IP65 dust and water-resistant |
| Dimensions | 135 × 70 × 35 mm (approx.) |
| Weight | ~250 g |
| Data Logging | Optional, up to 30 days of readings |
| Communication / Interface | Optional USB / Bluetooth for PC or mobile integration |
| Usage Scenarios | Industrial safety, oil & gas, chemical plants, mining, confined spaces, laboratories |
| Optional Features | Multi-gas monitoring, real-time mobile app integration, alarm history, automatic calibration |
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