With air quality receiving increasing attention, PM2.5 and other fine particulate matter have become key indicators affecting indoor and outdoor environmental health. Whether in homes, offices, or commercial spaces, people are demanding higher standards for real-time air quality monitoring and intelligent purification. The TZH03 infrared dust sensor, launched by Tensensor, is designed to meet this need, leveraging its high sensitivity, strong stability, and flexible output capabilities to become the ideal "sensing core" for air purification equipment and fresh air systems.

TZH03 Infrared Dust Sensor

Powered by Infrared Technology, Precisely Detecting Micron-Sized Particles

    The TZH03 employs mature infrared PM2.5 detection technology, combined with optical particle counting principles, to sensitively detect dust and smoke particles larger than 1μm in diameter. The sensor undergoes professional aging, calibration, and exfoliation, ensuring excellent consistency and reliable, stable detection results in various environments. Its detection range covers 4–500 μg/m³, making it suitable for most indoor air quality monitoring scenarios.

Dual-mode output design for enhanced compatibility and easier integration.

    To meet the integration needs of different systems, the TZH03 offers two output modes: UART serial port and PWM pulse width modulation. Users can flexibly choose according to their motherboard interface:

    PWM mode: Outputs a square wave signal with a 1-second period. The low-level pulse width directly corresponds to the dust concentration (1ms = 1μg/m³). The signal is internally filtered, resulting in low fluctuations and stable response.

    UART mode: Sends one frame of data every 1 second, supporting 9600 baud rate, 8 data bits, 1 stop bit, and no parity bit. The communication protocol is clear and easy for embedded systems to directly parse.

Low power consumption and small size, suitable for embedded applications

    The TZH03 operates at 5V±0.2V and has an operating current of ≤30mA, making it suitable for long-term continuous operation. Its compact size (46.0×32.0×18.3mm) facilitates embedding in various devices. It uses a ZH1.5mm-4P terminal socket for simple wiring and easy installation.

Widely applicable to air purification and fresh air systems

    Air purifiers: Real-time monitoring of indoor PM2.5 concentration and intelligent adjustment of purification levels.

    Fresh air systems: Automatically control the fresh air volume based on air quality, achieving a balance between energy saving and purification.

    Environmental monitoring equipment: Can be used as an air quality display terminal in offices, schools, hospitals, and other locations.

    Smart home systems: Linked with air conditioners, humidifiers, and other devices to create a healthy and comfortable living environment.

    The TZH03 infrared dust sensor, with its advantages of accurate detection, flexible output, easy integration, and stable operation, has become the preferred sensor for various air purification and fresh air systems. Whether in the product development stage or during system upgrades, the TZH03 provides reliable data support, helping to create a smarter and healthier air management system.

If you are looking for a high-performance, cost-effective dust sensor, the TZH03 is undoubtedly a recommended choice:

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