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  •   Wall-mounted CO₂ and air quality sensor with transmitter | 400–5000 ppm | RS485 / 4–20 mA outputs | YYS All-in-One
      Wall-mounted CO₂ and air quality sensor with transmitter | 400–5000 ppm | RS485 / 4–20 mA outputs | YYS All-in-One 1
      Wall-mounted CO₂ and air quality sensor with transmitter | 400–5000 ppm | RS485 / 4–20 mA outputs | YYS All-in-One 2
      Wall-mounted CO₂ and air quality sensor with transmitter | 400–5000 ppm | RS485 / 4–20 mA outputs | YYS All-in-One 3

    Wall-mounted CO₂ and air quality sensor with transmitter | 400–5000 ppm | RS485 / 4–20 mA outputs | YYS All-in-One

    Code: ES-YYS
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    Price 185.89 € VAT incl.
    ( 153.63 € VAT excl. )
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    Wall-mounted air quality sensor and transmitter designed for continuous indoor air condition monitoring. The device measures CO₂ concentration and, depending on the configuration, can be adapted to monitor additional parameters such as temperature, humidity, CH₂O (formaldehyde), PM2.5, PM10, and TVOC. Thanks to RS485 (MODBUS) and 4–20 mA outputs, this sensor can be easily integrated into HVAC, BMS, SCADA, automation, and building management systems, making it suitable for both residential and professional use. 

  • Product description

    Technical Specifications

    Type: Wall-mounted CO₂ and air quality sensor with transmitter
    Manufacturer / Brand: YYS
    Measured medium: Indoor air
    CO₂ measurement range: 400–5000 ppm
    Outputs: RS485 / 4–20 mA
    Detection (depending on configuration): CO₂; Temperature; Humidity; CH₂O (formaldehyde); PM2.5 / PM10; TVOC
    Certifications: ISO9001, RoHS
    Customization: OEM / ODM / OBM support

    Functions

    CO₂ concentration measurement – enables monitoring of indoor ventilation efficiency and air quality
    Analog and digital signal – 4–20 mA for industrial systems, RS485 for digital integration
    Multi-parameter air analysis – one device can monitor several air quality indicators
    Continuous real-time operation – designed for long-term 24/7 monitoring

    Applications

    Residential users: Indoor air quality monitoring at home, support for ventilation or heat recovery control, healthier living environment
    Electricians: Easy wall mounting, clear outputs (RS485 / 4–20 mA), simple integration into existing systems
    Engineers / automation specialists: Integration into BMS, HVAC, SCADA systems, development of air quality control algorithms, data analysis and optimization
    Commercial and public buildings: Offices, schools, hospitals, hotels, energy savings through optimized ventilation, compliance with air quality requirements

    Advantages

    Accurate CO₂ measurement (400–5000 ppm)
    RS485 and 4–20 mA – universal outputs
    Ability to measure multiple air parameters
    Suitable for professional systems
    ISO9001 and RoHS certifications
    OEM / ODM customization options

    Limitations

    Designed for indoor use only
    Requires a compatible control or monitoring system
    Additional sensors depend on configuration 

    Illustrative image may have been created using AI. The appearance of the product may differ slightly from the image shown. Please refer to the technical specification.

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