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HEIMAN - Air quality sensor (CO2, temperature, humidity) WIFI TUYA + visual and audible alarm



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Measure the air quality in your environment in real time and be alerted when there is an abnormally high level of CO2.

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Monitor indoor air quality

The monitor is used for detecting the air quality in the indoor environment, including CO2, temperature and humidity.

Adopting advanced sensor with high stability, small sensitivity drift and long service life, free from calibration operation. Aided by advanced WIFI wireless technology.

The user could learn about the home air environnement at anytime, anywhere, and keep the home air quality at its best.

Simplified design

The monitor is equipped with a high-definition screen, delicate and compact, full screen without black edge.

One-button switch and bright screen

Showing CO2 value, temperature, humidity, date and time simultaneously and clearly.

Monitoring automatically

Care for the health of breathing anytime and anywhere.

Real-time Alarm

With audible and visual alarm function, when the indoor CO2 concentration exceeds the alarm setting value, it will automatically alarm and send the information to your phone APP through smart gateway.

Using your phone APP to control other devices to keep the air fresh when it alarms.

Mirror-surface screen

Being a mirror after the screen off.

Dual-power supply

Using adapter power supply and containing a backup lithium-ion battery. Widely used in house, educational place, sports venues, offices and other scenarios.


  • Standard WIFI protocol.
  • Use this sensor through the free TUYA app.
  • View air quality in real time.
  • Be alerted when there is an abnormally high level of CO2.
  • Create automations based on temperature, humidity and CO2.


  • Power supply: AC adapter Input: AC 100~240V Output DC 5V/1A Micro-USB
  • Built-in battery: Lithium-ion Battery
  • CO2 Sensor type: non-dispersive infrared (NDIR) sensor
  • CO2 Sensor lifespan: max.10 years
  • Wireless protocol: WIFI
  • Communication distance: 100 meters
  • Operating temperature: -10°C to 40°C
  • Humidity: 10% to 95% (non-condensing)
  • Installation location: Wall or desk-stand
  • CO2 Measurement Range:400-5000ppm
  • CO2 Accuracy: 100 ppm or 10% of the measured values, Whichever is higher
  • Air Quality / CO2 Concentration:
  • Good: <600ppm Normal: 600~1200ppm Poor: >1200ppm Values can be adjusted on the CO2 setup page
  • Alarm triggering: Poor: >1200ppm(can be adjusted on the CO2 setup page)
  • Dimension: 90x90x26mm(Without bracket)