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    Air Quality Sensor for Home, TVOC/CO2/CH2O

    SKU: SUCH-AQS-HOME
    $93.74
    ● Real-time TVOC, CO₂ & CH₂O detection ● Multi-parameter indoor air quality monitoring ● RS485 Modbus output for HVAC & smart home control ● Wall/ceiling mount for homes, offices & shopping centers
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    🚚 Free shipping
    🕒 Delivery date: 6-12 days
    🔁 30-day Returns
    Overview

    SUCH air quality sensor is an indoor air quality sensor for real-time home, office, and building air monitoring. It measures TVOC, CO₂, CH₂O, temperature, humidity, and optional PM2.5 to help users understand ventilation, chemical pollutants, and particle pollution. With RS485 Modbus output, a digital display, and wall or ceiling mounting, it is suitable for homes, shopping centers, underground garages, HVAC systems, and smart indoor monitoring projects.

    Feature

    • Multi-Parameter Combination: TVOC sensor supports flexible configuration of PM2.5, CO₂, CH₂O, TVOC, temperature, and humidity for comprehensive air quality monitoring.
    • Independent Sensor Probes: Each gas type is measured using a dedicated sensor probe, ensuring this air sensor delivers high precision and minimal cross-interference.
    • Compact Circuit Design: The internal circuit is tightly arranged, allowing the air sensor to be installed in limited spaces while maintaining functionality and aesthetics.
    • 24/7 Continuous Monitoring: Enables uninterrupted real-time monitoring with stable signal output, suitable for critical environments like hospitals, subways, and industrial zones.
    • Counterflow Vent Structure: Optimized vent layout enhances detection precision; ideal for capturing accurate air pollution data in dynamic airflow conditions.
    • Durable ABS Housing: The enclosure is made of flame-retardant ABS material, providing excellent resistance to heat, aging, and chemical exposure.

    Dimension (Unit:mm)

    Air quality sensor for home size

     

    Wiring Instruction

    Indoor air quality sensor detail 1

    Convection Hole

    Indoor air quality sensor detail 2

    RS485 Output

    Specs
    Working Voltage DC 10V~30V (Standard 24V)
    Working Current <200 mA
    Screen Parameters 2.0 inch tftp color screen, resolution 320x240
    Warm-up Time 3min
    Detection Frequency Data updated 1 time per second (default)
    Output Mode Modbus-RS485
    Reference Size Ф 144*41.35 mm
    Material ABS Shell
    Installation Ceiling-mounted, wall-mounted
    Working Temperature -10℃~ 50℃
    Operating Humidity 0~95% RH (non-condensing)
    Storage Temperature -30℃~ 60℃
    Storage Humidity 0~99% RH (non-condensing)


    Substance Parameters

    Temperature
    Range -40℃~100℃
    Resolution 0.1℃
    Precision ±0.3℃
    Humidity
    Range 0~99% RH
    Resolution 0.1% RH
    Precision ±3% RH
    Carbon Dioxide CO2
    Range 400~5000ppm
    Resolution 1 ppm
    Precision ±(50ppm+3% read)
    Formaldehyde (CH2O)
    Range 0~1500 μg/m3
    Resolution 1 μg/m3
    Precision ±10 read
    TVOC
    Range 0~5000 μg/m3
    Resolution 1 μg/m3
    Precision ±10 read
    Application
    Air quality sensor for home

    Air Quality Sensor for Home

    Shopping senter

    For Shopping Senter

    Underground garage

    Underground Garage

    FAQ
     
    • TVOC levels indicate the presence of harmful chemicals from paint, furniture, and cleaning products.
    • CO₂ buildup reflects poor ventilation and can lead to drowsiness or reduced cognitive performance.
    • Formaldehyde (CH₂O) is a known carcinogen found in building materials and household products, so real-time monitoring helps prevent prolonged exposure.
     
    • For high CO₂, improve ventilation by opening windows or using exhaust fans.
    • For high TVOC/CH₂O, remove chemical sources (e.g., air fresheners, solvents) and consider using air purifiers with activated carbon filters.
     

    The air quality sensor cannot detect mold or pollen directly, but elevated concentrations of TVOC and PM2.5 (with supporting modules if available) may indirectly reflect the presence of mold or allergens. If you need to detect mold specifically, please choose a professional sensor that supports fungal spore monitoring.

    5.0 1
    Write your own review Close
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    David | 5/15/2026 7:25 AM
    Great for Keeping Track of Indoor Air Quality
    I wasn’t sure if I actually needed an air quality monitor, but this one turned out to be really helpful. I keep it in the bedroom and check the CO2 levels at night. It actually made me improve ventilation habits, and the numbers seem pretty consistent. Compact and easy to move around.