ZEHS04 Atmospheric Monitoring Sensor Module

  • • High sensitivity, high resolution, long lifespan
  • • UART or RS485 output
  • • High stability, good anti-interference ability, excellent linear output

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  • Principle Introduction
Principle Introduction:
ZEHS04 is a diffusion type multi-in-one module, mounted with atmospheric monitoring module ZE12, to detect CO, SO2, NO2, and O3. It is also compatible to connect with dust sensor module, temperature and humidity sensor module externally.
With TTL or RS485 output, it is convenient to use and debug, which greatly shortens the user’s design and development cycle, and meets customers’ needs for different gas detection occasions.
Applications :
Urban atmospheric environmental monitoring;
Unorganized emissions of pollution monitoring at factory sites;
Portable instruments, air quality monitoring equipment, and smart home equipment.
Technical parameters :

Tips:For more parameter information, please refer to the latest manual provided by salesman.



Target Gas

CO, SO2, NO2, O3

(PM2.5, PM10, temperature and humidity expansion compatible)


UART(3V TTL, 5V compatible), RS485

Working voltage

DV 9~24V

Response time

≤ 120S

Resume time

≤ 120S


≤ 10ppb

Working Tem.


Working Hum.

15~90% RH(no condensation)

Storage Tem.



2 years(based on sensor lifespan)

Power consumption

≤ 1W


10x12x6cm(Lx Wx H)

Reference Circuit :

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