Beijing Zetron Technology Co., Ltd CN

MS400-PID Portable PID Gas Detector

The MS400 PID gas detector is an instrument capable of detecting very low concentrations of volatile organic compounds and other toxic gases. We provide gas detector OEM/ODM services.


MS400 Portable 4 in 1 Gas Detector

MS400 Series Gas Detector is up to 4 potential atmospheric hazards including oxygen, combustible and toxic gases, t he types of gases for detection are more than 500 types,MS400 is unparalleled in its versatility, capability and overall value.

It's adopted water-resistant line of portable gas detectors has transformed the market with its matchless array of features.

Continuously monitoring and displaying concentrations of up to 4 gases, the compact and lightweight MS400 was designed and engineered with an extensive host of applications in mind.  

Gases to be detected  Range  Minimum reading Response time T90
Combustible gas ( EX )   0-100%LEL   0.1%LEL  ≤10 seconds
Hydrogen sulfide ( H2S )  0-10ppm 0.001ppm ≤30 seconds
Sulfur dioxide ( SO2 )  0-10ppm 0.001ppm ≤30 seconds
Compound gases 
( TVOC )
0-10ppm 0.001ppm ≤30 seconds
Volatile gases ( PID )  0-10ppm 0.001ppm ≤30 seconds

Tag: PID gas alarm, Pump gas monitor, Multi gas detector , Gas leak detector, Gas alarm detector, Hydrogen gas analyzer, phosphine detector, Methane leak monitor, OEM/ODM gas detector


Measuring gas
Hydrogen sulfide (H2S)
Carbon monoxide (CO)
Oxygen (O2)
Sulfur dioxide (SO2)
Measuring range
and other ranges can be customized
0.01 ppm
1 ppm
 0.01 %Vol
0.1 %Vol
Other resolution can be customized
Sensor type
Infrared Sensor
Other Sensor:Laser , Electrochemical, Thermal conductivity, catalytic combustion, thermal conductivity, PID photoionization, and so on.
Depending on the type of gas, range, field environment and user demand,
Other sensors can be  customized.
Measuring type
Built-in Pump sunction
Response time
2.31-inch high-definition color screen
Alarm method
sound & light alarm; 
vibration alarm;  
sound & light + vibration alarm;
turning off the alarm
DC3.7V,   4500mA high capacity rechargeable polymer battery
Data storage
Standard capacity is 100, 000 entries
Working temperature
-40 ℃ ~ + 70 ℃
Working humidity
≤10 ~ 95% RH
Rubber enclosure
Standard accessories
Manual, qualification certificate, warranty card, USB charger (including the data cable), belt clip, colorful packaging box (optional high-grade aluminum instrument case)
160×70×28mm (L×W×H)
Ex grade
 Ex ia IIC T6 Ga   Intrinsically safe type
Ingress protection


All the cases which requires the portable rapid detection of gas concentrations such as petroleum, chemical, pharmaceutical, environmental protection, combustion gas distribution, warehousing, smoke gas analysis, air governance, and so on.


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