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6 to 1 Air quality detector

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Product Detail

With the development of economy and the improvement of life style, more and more people are beginning to pay attention to health and environmental protection. In addition to basic ventilation, many people also use air quality detectors to comprehensively test the air quality status, and comprehensively protect the health of pregnant women, children, the elderly and family members.

All air quality detectors use imported sensors, which can simultaneously detect formaldehyde, PM2.5, TVOC, temperature and humidity, carbon dioxide, and AQI. It is a five-in-one air quality detector.

The air quality detector has a built-in 2400mAh rechargeable lithium battery and is equipped with a standard micro usb charging port for charging. There is a charging indicator on the side, which displays red when charging and green when fully charged. It can be used continuously for 6-8 hours after it is fully charged.

Indoor air pollutants mainly come from decoration. The widely used decorative materials, boards, paints, wall paints, glues, new furniture, adhesives, etc., are likely to produce pollutants harmful to human health.

formaldehyde

Formaldehyde is the main decoration pollution produced after the decoration of new houses. It is a gas with a pungent odor and the release period is as long as 3-15 years.

Formaldehyde is irritating to human eyes and upper respiratory tract mucosa. The main hazards to human health are abnormal smell, allergies, abnormal lung function, abnormal liver function, abnormal immune function, etc. Direct skin contact with formaldehyde can also cause dermatitis, Spots, necrosis, etc.

Symptoms of formaldehyde poisoning: Chronic formaldehyde poisoning can cause digestive disorders, excitement, visual disturbances, and even nerve paralysis; acute poisoning can cause tearing, severe eye pain, throat itching, coughing, breathing difficulties and suffocation, accompanied by general weakness, weakness, and suffocation. Sweat and headache.

1. When the concentration of formaldehyde reaches 0.08-0.09mg/m³, children will have mild asthma;

2. When the formaldehyde in the indoor air reaches 0.2mg/m³, there will be peculiar smell and discomfort;

3. When the concentration of formaldehyde reaches 0.5mg/m³, it can irritate the eyes and cause tearing;

4. Formaldehyde reaches 0.6mg/m³, causing throat discomfort or pain; when the concentration is higher, it can cause nausea, vomiting, coughing, chest tightness, wheezing and even pulmonary edema;

5. When the concentration of formaldehyde reaches 30mg/m³, it will cause death immediately.

TVOC

What is TVOC? It is the abbreviation of Total Volatile Organic Compounds, total volatile organic compounds. It contains hydrocarbons, halogenated hydrocarbons, oxygenated hydrocarbons and nitrogenous hydrocarbons. It includes: benzene series, organic chlorides, Freon series, organic ketones, amines, alcohols, ethers, esters, acids, and petroleum jelly compounds.

Indoors, TVOC mainly comes from the combustion of coal gas and natural gas, and the emission of construction and decoration materials. Especially paints, coatings and adhesives. The normal indoor TVOC concentration is between 0.2mg/m3 and 0.6mg/m3, and it can even be dozens of times higher during decoration construction. What’s more serious is that the decoration materials only release 25% of the total amount during the air-drying process, and the rest will be discharged slowly over time, and the duration can even reach more than 2 years.

What are the hazards of TVOC? TVOC can smell, irritate, and some compounds are genotoxic. TVOC can cause the body’s immune level imbalance, affect the central nervous system, and experience dizziness, headache, drowsiness, weakness, chest tightness and other conscious symptoms. It may also affect the digestive system, causing loss of appetite and nausea. For babies and pregnant women, the impact will be even greater. In one case in Beijing, the baby got leukemia because he moved into the house just after the renovation.

In the TVOC national standard, the safety range is set within 0.6mg/m3.

PM2.5

In PM2.5, PM is the abbreviation of the English word particulatematter, which is literally translated as particulate matter, which is the solid or liquid particulate matter in the atmosphere. 2.5 refers to the particulate matter in the ambient air with an aerodynamic equivalent diameter of 2.5 μm or less, that is, 2.5 μm. Because of its small size, it is thinner than a hair, and only a micron level, so it is impossible to observe with the naked eye. Such substances can be suspended in the air for a long time, so it is obvious that the higher the concentration of PM2.5 in the air, the more serious the air pollution.

Principle of air quality detector

The air quality detector is a product that can detect formaldehyde, PM2.5, TVOC and temperature and humidity in real time. It is compact and easy to carry. Through its internal original imported sensor, it can accurately measure the concentration of pollutants, and calculate the air quality index AQI, and give an alarm when the concentration exceeds the standard. The principle of the air quality detector is to detect the signals of the front-end formaldehyde sensor, PM2.5 sensor, TVOC sensor and temperature and humidity sensor, amplify the weak signal of the sensor through an operational amplifier, and remove noise interference through a filter circuit, and then collect it through AD and use The 32-bit high-precision CPU processes the calculations, and then converts them into pollutant concentration values and displays them on the LCD screen.

PROTECH company recently launched 3 multi-functional air detectors, which can detect TVOC, HCHO, AQI, temperature and humidity, PM2.5, PM10, carbon dioxide, put it in the detection environment, it will detect the environment in a few minutes All air parameters.

Parameter Type

PTH-9A

PTH-9B

PTH-9-MD

 

 

6 to 1 Air quality detector 

 6 to 1 Air quality detector-2

6 to 1 Air quality detector-3 

temperature

range

-10℃~40℃

-10℃~40℃

-10℃~40℃

deviation

±2℃

±2℃

±2℃

Minimum display unit value

0.1

0.1

0.1

humidity

range

20%~80%RH

20%~80%RH

20%~80%RH

deviation

±5%

±5%

±5%

Minimum display unit value

1%

1%

1%

formaldehyde

range

 

0~2mg/m³

 

deviation

±15%

Minimum display unit value

0.01mg/m³

TVOC

range

 

0-5.000mg/m³

 

deviation

±15%

Minimum display unit value

0.01mg/m³

carbon dioxide

range

0-5000ppm

0-5000ppm

0-5000ppm

deviation

±6%

±6%

±6%

Minimum display unit value

1

1

1

PM2.5

range

0-1000μg/m³

0-1000μg/m³

0-1000μg/m³

deviation

±15μg/m³

±15μg/m³

±15μg/m³

Minimum display unit value

1

1

1

PM10

range

0-1000μg/m³

0-1000μg/m³

0-1000μg/m³

deviation

±15%

±15%

±15%

Minimum display unit value

1

1

1

C6H6

range

 

0-3.00mg/m³

 

deviation

±10%

Minimum display unit value

0.01

AQI

0-500

0-500

0-500

UV

 

0-9

 

WIFI

 

Wi-Fi (only 2.4GHz)

Wi-Fi (only 2.4GHz)

APP

 

TUYA

Midea

Battery specifications

18650

18650

18650

Input parameters

0-5V 1A

0-5V 1A

0-5V 1A


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