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DoraHello, I already used the equipment in an aluminum smelting plant in Mexico and I was surprised by the function of your company's laser device.
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SylviaGood gas leak detection instrument !!! High accurate test values :D
Zetron MS400-S Multi Gas Detector for CO H2S CO2 O2

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xProduct Name | Zetron MS400-S Multi Gas Detector | Type | Electrochemical/catalytic Combustion Sensor Gas Detector |
---|---|---|---|
Resolution | 0.01 Ppm | Material | Plastic |
Operating Humidity | 10%-95%RH (Standard) | Operating Environment Temperature | -20°C To +55°C (customizable To -40°C To +70°C) |
Gas Type | CO, H2S, CO2, O2 | Protection Grade | IP68 |
Screen Size | 2.4 Inch LCD | ||
Highlight | Zetron MS400-S multi gas detector,portable CO H2S CO2 O2 detector,multi gas detector with warranty |
Attribute | Value |
---|---|
Product Name | Zetron MS400-S Multi Gas Detector |
Type | Electrochemical/catalytic combustion sensor gas detector |
Resolution | 0.01 ppm |
Material | Plastic |
Operating Humidity | 10%-95%RH (Standard) |
Operating Temperature | -20°C to +55°C (customizable to -40°C to +70°C) |
Gas Type | CO, H2S, CO2, O2 |
Protection Grade | IP68 |
Screen Size | 2.4 inch LCD |
The Zetron MS400-S Portable Four-in-One Gas Detector is an advanced device designed for rapid and accurate detection of gas leaks and concentration exceedance alarms. Its innovative four-in-one detection module integrates 1-4 digital sensors with plug-and-play functionality and smart recognition, enhancing convenience and flexibility.

- Flexible Detection Modes: Built-in pump suction measurement with optional diffusion detection mode and pump blockage alarm
- Intelligent Sensor Technology: Digital sensors support plug-and-play swapping with smart identification and quick response times
- Multiple Unit Switching: Supports umol/mol, ppm, pphm, ppb, mg/m3, ug/m3, %Vol, and %LEL displays
- User-Friendly Operation: Four-button control with one-button calibration and 2.4-inch color LCD display
- Advanced Data Management: Stores up to 1,000,000 records (expandable to 10M+) with data export and recovery functions
Widely used in fire protection, emergency rescue, confined space operations, petroleum, chemicals, metallurgy, refining, gas storage, pharmaceuticals, environmental protection, and air treatment industries.
Parameter | Specification |
---|---|
Model | MS400S |
Measurement Range | Depends on site environment and user requirements |
Resolution | 0.001 ppm (0-10 ppm high precision) / 0.01 ppm (0-10 ppm); 0.01 ppm (0-100 ppm), 0.1 ppm (0-1000 ppm), 1 ppm (above 1000 ppm); 0.1% LEL; 0.1%, 0.01% Vol |
Display Units | umol/mol, ppm, pphm, ppb, mg/m3, ug/m3, %Vol, %LEL |
Response Time | T90 ≤ 20 seconds |
Power Supply | DC 7.4V |
Display Mode | 2.4-inch color LCD |
Operating Temperature | -20°C to +55°C (customizable to -40°C to +70°C) |
Communication Interface | Standard Type-C (2 hours full charge) |
Operating Humidity | 10-95% RH |

