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Air temperature and humidity, TVOC, carbon dioxide, formaldehyde, ozone, pm2.5 sensor

Indicators, shells and communication methods can be customized.
  • 1. Product overview

    Air temperature and humidity, infrared CO2, dust concentration (PM2.5/PM10), TVOC, CH2O, O3 transmitters are equipped with MEMS special modules to measure air temperature and humidity; at the same time, CO2 sensor data can also be accurately measured based on NDIR principle; PM2. 5/PM10 module provides laser light source and photoelectric receiver. The laser irradiates the airborne particles to generate scattering, and at the same time receives the scattered light at a certain angle, and obtains the curve of the scattered light intensity with time. ) and weight (ug/L), output PM1.0, PM2.5, PM10 three different ranges of particulate matter volume concentration or mass concentration data through serial port; formaldehyde probe is fuel cell type, 2-electrode measurement method, very low power consumption , Good linearity, strong anti-interference ability, can accurately measure PPM level formaldehyde concentration. The O3 probe adopts the principle of electrochemical measurement, with extremely low power consumption, good linearity, high sensitivity and stability, and can accurately measure the PPM level O3 concentration. TVOC adopts imported semiconductor measuring probes, which can measure gas concentrations above 0.01PPM, especially for formaldehyde, benzene, toluene and other volatile gases that have a greater impact on the human body, and can be used for qualitative measurement of air quality.LoRaWAN wireless communication technology star-shaped network, taking into account the design of communication distance, anti-interference, low power consumption, etc., to ensure that the communication distance is longer and the penetration ability is stronger (5~12 floors, 2~6KM field barrier-free communication distance), Compatible with the standard LoraWAN protocol, the networking is flexible and convenient, and it is more suitable for obstacles or indoor applications. It can be widely used in agricultural greenhouses, nursery flowers, smart farming, smart homes, smart commercial buildings, smart transportation and other environmental monitoring fields of the Internet of Things.

    Applicable places: indoor, car, warehouse, factory, environmental protection.

    Indicators, shells and communication methods can be customized.

    2. Technical Specifications

    Air temperature and humidity parameters



    1. Air temperature measurement range: -40~80 degrees
    2. Air temperature measurement accuracy: ±0.5 degrees
    3. Air temperature resolution: 0.1 degrees
    4. Air temperature repeatability: ±0.2 degrees
    5. Air temperature drift: <±0.1 degrees/year
    6. Air humidity measurement range: 0~100RH%
    7. Air humidity measurement accuracy: ±3RH%
    8. Air humidity resolution: 0.1%RH
    9. Air humidity repeatability: ±1%RH
    10. Air humidity drift: <±0.5%RH/year
    11. Measurement stabilization time: 2 seconds
    12. Response time: <5 seconds

    Product calibration-free interchange

    1.CH2O measurement principle: Electrochemical

    CH2O detection method: online monitoring, diffusion type

    2.CH2O measurement range: 0~2PPM

    1. CH2O resolution: 0.01PPM
    2. CH2O measurement accuracy: <±4%
    3. CH2O measurement stability: <±3%
    4. CH2O measurement repeatability: <±3%
    5. CH2O measurement sensitivity: 1.1±0.5uA (ppm)
    6. CH2O probe life: 2 years (in air)
    7. Measurement stabilization time: 2 seconds
    8. Response time: <50 seconds

    11.Temperature Compensation: Available  

    1. TVOC measurement principle:

    Nano-semiconductor measurement technology

    1. Detection method: The conductivity of the probe increases in the same direction as the TVOC concentration
    2. Measuring range: 0-60ppm
    3. Measurement resolution: 0.01ppm
    4. Measurement accuracy: ±10%
    5. Probe life: > 3 years
    6. Measurement stabilization time: 15 seconds

    8.Response time: <5 seconds




    Measurement method: NDIR infrared measurement

    CO2 measurement range: 0~5000PPM

    CO2 measurement accuracy: ±4%

    CO2 resolution: 1PPM

    CO2 measurement repeatability: ±1%

    Warm-up time: 180 seconds

    Response time: 60 seconds

    Temperature Compensation: Available

    PM2.5/PM10 measurement principle: laser scattering method

    PM2.5/PM10 measuring diameter: 0.3~1, 1~2.5, 2.5~10um

    PM2.5 measurement range: 0~999ug/m3 (mass concentration) optional 0~1999ug/m3

    PM10 measurement range: 0~999ug/m3 (mass concentration) optional 0~1999ug/m3

    Volume particle concentration: PCS/0.1L (how many particles per 0.1L)

    Minimum particle diameter: 0.3um

    Accuracy: <±10%

    Resolution: 1ug/m3

    Repeatability: <10%

    Output signal: Instantaneous PM1.0, PM2.5, PM10 concentration

    Measurement stabilization time: 5 seconds

    Response time: <10 seconds

    O3 measurement principle: Electrochemical

    O3 detection method: online monitoring, diffusion type

    O3 measurement range: 0~2.35PPM or 0-5mg/m3

    O3 resolution: 0.010mg/m³

    O3 probe life: 3 years (in air)