Zetron MS400-S Multi Gas Detector
OVERVIEW
Zetron MS400-S Portable Four-in-One Gas Detector is an advanced device designed for rapid and accurate detection of gas leaks and over-limit concentration alarms. Its innovative four-in-one detection module integrates 1-4 digital sensors, supporting plug-and-play functionality and smart recognition, greatly enhancing convenience and flexibility in use. This detector combines various mainstream gas detection principles, including electrochemical, infrared, catalytic combustion, thermal conductivity, and PID photoionization, ensuring high-precision detection capabilities even in complex environments.
The MS400-S is widely applicable in various industrial and civilian settings that require gas detection, including firefighting, emergency rescue, confined space operations, petroleum, chemicals, metallurgy, refining, gas, storage, pharmaceuticals, environmental protection, and air treatment.

FEATURES
- Flexible Detection Modes: Built-in pump suction measurement, with the ability to switch to diffusion detection mode as needed. It also features a pump blockage alarm function, ensuring smooth and safe detection.
- Intelligent Sensor Technology: Utilizes intelligent digital sensors, supporting plug-and-play sensor swapping, enabling smart identification and easy maintenance, with quick response times.
- Multiple Unit Switching: Supports various unit displays including umol/mol, ppm, pphm, ppb, mg/m3, ug/m3, %Vol, and %LEL, meeting the needs of different industries and standards.
- Convenient Operation and High-Definition Display: Four-button operation combined with a quick one-button calibration function for intuitive and efficient use; the 2.4-inch high-definition color screen provides clear real-time data and curve displays.
- Powerful Data Management: Standard storage capacity of up to 1,000,000 records, expandable to over 10 million records. Supports local viewing, deletion, and data export, with customizable storage time intervals. Additionally, it includes data recovery functionality to ensure data security.
APPLICATION
The MS400-S portable four-in-one gas detector is widely used in various fields, including fire protection, emergency rescue, confined space operations, petroleum, chemicals, metallurgy, refining, gas, storage, pharmaceuticals, environmental protection, and air treatment. It provides rapid and accurate gas leak detection and concentration exceedance alarms for these industries, making it an essential tool for ensuring industrial safety and environmental health.
PARAMETER
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 Environment Temperature | Temperature: -20°C to +55°C (customizable to -40°C to +70°C) | Communication Interface | Standard Type-C (2 hours full charge) | Operating Environment Humidity | Relative Humidity: 10-95% RH | |

