Beijing Zetron Technology Co., Ltd CN

MS104K-S-H2S Personal Protect Gas Detector

MS104K-S4 is a compact, ultra-low power consumption, mobile gas detector for rapid detection of gas concentration. We provide gas detector OEM/ODM services.


MS104K-S-H2S Personal Protect Gas Detector

● Small size, light weight, easy to carry

● With 1800mA rechargeable battery, standby time of 1 year, working for more than 400 hours
● Free switching of units from ppm/LEL/VOL

● Data recovery function
● Support infrared, Bluetooth, LOLA, NB-IOT wireless interconnection functionPortable Diffusion 4 Gases in 1 Detector CO H2S O2 LEL Carbon Monoxide Oxygen Combustible Multi Gas Detector
● IP65 protection Leverl: waterproof, dustproof, explosion-proof, shockproof, intrinsically safe circuit design, anti-static,

anti-electromagnetic interference

Gases to be detected  Range  Minimum reading Response time T90
Combustible gas ( EX )   0-100%LEL   0.1%LEL  ≤10 seconds
Methane ( CH4 )  0-100%LEL   0.1%LEL  ≤10 seconds
Oxygen gas ( O2 )  0-30%Vol   0.01%Vol  ≤10 seconds
Carbon monoxide ( CO )  0-100ppm  0.1ppm  ≤25 seconds
Carbon dioxide ( CO2 )  0-500ppm  1ppm ≤20 seconds
Ozone ( O3 ) 0-1ppm  0.001ppm ≤20 seconds
Hydrogen sulfide ( H2S )  0-10ppm 0.001ppm ≤30 seconds
Sulfur dioxide ( SO2 )  0-10ppm 0.001ppm ≤30 seconds
Nitric oxide ( NO ) 0-10ppm 0.001ppm ≤30 seconds
Volatile gases ( PID )  0-10ppm 0.001ppm ≤30 seconds

Tag: Diffusion gas monitor, Multi gas monitor , Gas leak detector, Gas alarm detector, O3 gas analyzer, Methane leak,  NO detector, Ozone monitor, Mini 4in1 gas meter, OEM/ODM gas detector


Detection gas
Complex gas (carbon monoxide CO, hydrogen sulfide H2S, oxygen O2, flammable gas EX) or any other single gas, except individual
sensors with high power consumption
Detection range
CO (0 ~ 1000ppm), H2S (0 ~ 100ppm), O2 (0 ~ 30%VOL), Ex (0 ~ 100%LEL),Other range can be customized
Display mode
HD LCD dot matrix display, double button operation
Detection accuracy
≤±3% (F.S)
Response time
Data storage
Standard 20,000 pieces of data capacity, Support the local view, delete or data export, storage time interval arbitrary Settings
Communication interface
Infrared communication, Optional Bluetooth, LORA communication, etc
Explosion-proof mark
Exia II CT4 Ga
Protection grade
IP65, Dustproof, Waterproof splash
Less than 150g


MS104K-S can apply to petroleum, chemical industry, pipe network inspection, medicine, environmental protection, storage and other occasions that need to detect gas concentration.



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