TVOC air quality sensor

TVOC air quality sensor is a sensor for detecting indoor gas pollution, which can detect the sum of toxic and harmful gases, volatile organic compounds (VOC) and other air pollutants in indoor air. This sensor detects pollutants in the indoor air and generates an indicative signal. If you want to understand TVOC air quality sensor, you must first know what is tvoc sensor? What is its function? Why use TVOC air quality sensor?

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TVOC air quality sensor is a device used to detect indoor TVOC and VOC concentration. Some customers do not understand the difference between TVOC VS VOC, the following is a detailed introduction for you.

1.Differences in meaning

Usually, all indoor organic gaseous substances that are sampled and analyzed are called TVOC, which is the abbreviation of the first letter of the three words Volatile Organic Compound, and various measured VOCs are collectively called TVOC.

VOC is the English abbreviation for volatile organic compounds. In a general sense, VOC refers to volatile organic compounds as a whole. However, in the context of environmental protection, VOC specifically refers to a subset of volatile organic compounds that are harmful and have the potential to cause damage.

2.Material difference

TVOC refers to the sum of all measured VOCs, mainly from fuel combustion and transportation: while indoors mainly from combustion products such as coal and natural gas, smoke from smoking, heating and cooking, etc., in building and decoration materials Adhesives, coatings, paints, panels, wallpapers, etc., furniture, household appliances, furniture, cleaning agents, and human body emissions.

VOC outdoors mainly originates from fuel combustion and transportation activities. Indoors, VOC primarily emanates from combustion byproducts like coal and natural gas, cigarette smoke, heating and cooking processes, construction and decoration materials, furniture, household appliances, cleaning agents, and human body emissions.

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The basic principle of TVOC air quality sensor

It uses a process called “adsorption effect” to detect toxic and harmful gases and volatile organic compounds in the air. This process means that when toxic gases and volatile organic compounds in the air pass through the sensor, they form a thin film on the surface of the sensor. The thickness of this film can be used to measure the concentration of pollutants in the air and thus determine the quality of the air.

Model Number Model Detection Range Communication Method Product Size Product Features
FS00603 0~5000μg/m³
UART (3.3V_TTL level)
17.8×15.2×2.9 mm
  • Long service life and good stability.
  • Waterproof, oil-proof, and dust-proof.
  • Constant power design with low power consumption.
FS00602 TVOC:0~5000μg/m³
UART (3.3V_TTL Voltage level)
17.8×15.2×2.7 mm
  • TVOC sensor module
  • Semiconductor sensor
  • MEMS hotplate technology
  • Calibrated before leaving factory
FS00600A 0-200PPM (alcohol)
0-10PPM (formaldehyde)
0-10000 (natural gas)
5-500PPM (hydrogen)
  • Low power consumption and long service life.
  • Low cost and small size.
  • High sensitivity to low concentration of polluting gases.
  • Simple application circuit.
  • High consistency.
FS00600B 1ppm~500ppm
  • MEMS TVOC Sensor
  • Ethanol, formaldehyde, toluene detection sensor
  • Simple driving circuit, good stability and long life

Why use TVOC air quality sensor?

TVOC can cause the imbalance of the body’s immune level, affect the function of the central nervous system, and cause symptoms such as dizziness, headache, lethargy and weakness; it can also affect the digestive system, causing loss of appetite, and in severe cases, it can damage the liver and hematopoietic system. The TVOC air quality sensor can be used to monitor the concentration of indoor TVOC in real time. When the concentration is too high, an alarm will be given in advance, so that you have enough time to solve it.

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Advantages of TVOC air quality sensor

The advantage of TVOC air quality sensor is its accuracy and reliability. It can quickly and accurately detect pollutants in the air, and can operate for a long time without being affected by the outside world. This also makes it suitable for indoor air detection systems, which can monitor indoor air quality in real time and provide effective control measures for pollution sources and pollutants.