Target: PM2.5
Model: ZPH03
Detection range: 4 ~ 500ug/m³
Detection principle: IR
Characteristics: Good Stability for Long Time,Low Consumption,Good Anti-interference Performance
Size: 46.0×32.0×18.3mm(L×W×H)
Output signal: UART、PWM

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This sensor integrates infrared PM2.5 detection technology, using particle counting principle to detect PM2.5 in the environment. It can detect the particles (diameter ≥1μm).

Before delivery, the sensor has been aged, debugged, calibrated with good consistency and high sensitivity.


  • Air purifier
  • Air refresher
  • Portable Instrumentation
  • HVAC system
  • Air conditioner
  • Domestic and Commercial AC


  • Good Stability for Long Time
  • Low Consumption
  • Good Anti-interference Performance
  • High Sensitivity
  • Good Consistency


Model ZPH03
Working voltage range 5±0.2 V (DC)
Output mode UART、PWM
Output signal voltage 4.5±0.2 V
Detection ability Smallest particles 1 μm diameter
Detection Range 4 ~ 500ug/m³
Warm-up time ≤10s
Working Current ≤30mA
Humidity range Storage ≤95%RH
Working ≤95%RH(No condensation)
Temperature range Storage -30℃~60℃
Working 0℃~50℃
Size 46.0×32.0×18.3mm(L×W×H)
Physical interface ZH1.5mm-4P ConnectorSocket

* The description and specifications might be changed without notice. Please contact us for the latest information before placing orders.

Technical Support:

Customized technical design and function, LOGO and package are available without extra charge (including molding fee) for mass volume.

The sensors don't have sleeping mode. It can be set in program if needed.

All Winsen products go through strict inspections and tests to make sure they are 100% qualified before shipping out.

The sensor has been fully tested (not calibrated) before leaving the factory. However, after transportation and storage, the environment conditions change, and the surface of the sensor absorbs moisture, mixed gas, pollution matters, etc. It is recommended that customers perform aging and calibration after sensors become stable according to the program and use occasions of the whole device.

15﹪-90﹪RH without condensation,greater or less than this range or long-term high temperature and high humidity will affect the life of the sensor.

Our sensors are certified with CE, 3C, ROHS, anti-explosion, fire prevention, and coal mining safety according to different applications. And we provide assistance for new certification.

Many factors can cause the sensor to fail such as broken wires in transportation, poisoning, falling off of the sensitive material, damage to the heating wire (device), etc. Please find specific cause in each category with Winsen’s aftersales.

Winsen provides professional consultation and service before and after sales. We will recommend the best fitting sensor for your demand. If you have any problem, don’t hesitate to email us to

Due to high volume of daily incoming emails and time zone difference, we may not be able to reply your emails immediately. But we will reply to your inquiry in 24 business hours.