Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Sensors |
| Origin | - |
| Detection Principle | Laser Scattering |
| Measured Parameters | PM1.0, PM2.5, PM10, Temperature, Humidity, TVOC |
| Particle Range | 0.3 - 10.0 μm |
| Concentration Range | 0 - 1000 μg/m³ |
| Communication Interface | UART / TTL |
| Operating Voltage | 5.0V ±0.2V |
| Response Time | ≤ 10 seconds |
| Data Update Frequency | 1 second |
| Operating Temperature | -10°C to 60°C |
| Dimensions | 48mm x 38mm x 12mm |
Anonymous
Mar 31, 2026
Rating: 4/5
Great value, minor calibration needed
Works well out of the box, though I noticed it needed about 5 minutes to warm up before readings stabilized. Once warmed up, the PM2.5 readings matched my commercial monitor very closely. The TVOC feature is a nice bonus.
Anonymous
Mar 31, 2026
Rating: 5/5
Perfect for my home automation project
This sensor module is incredibly accurate and easy to interface with my ESP32. The data output is consistent, and the inclusion of temperature and humidity sensors saves me from buying separate components. Highly recommended for DIY air quality monitors.
Anonymous
Mar 30, 2026
Rating: 5/5
Reliable and compact
Small form factor fits perfectly inside my custom 3D printed enclosure. It has been running 24/7 for two weeks without any issues. The real-time data helps me know exactly when to turn on my air purifier.
Anonymous
Mar 30, 2026
Rating: 4/5
Solid performance for prototyping
Good build quality and stable voltage requirements. The only reason for 4 stars instead of 5 is that the cable connector feels a bit fragile, so handle with care during assembly. Otherwise, the sensor performance is top-notch.
Anonymous
Mar 29, 2026
Rating: 5/5
Excellent documentation and support
I was worried about the UART protocol, but the provided documentation made integration seamless. The laser detection seems very sensitive to dust; even waving my hand near it causes a spike. Great sensitivity for the price point.
Anonymous
Mar 19, 2026
Rating: 5/5
Best sensor in this price range
I have tested several modules, and this one offers the best balance of features and cost. The ability to detect TVOCs alongside particulate matter makes it a comprehensive solution for indoor air quality monitoring.
Q: What is the lifespan of the laser component?
A: Under normal operating conditions, the laser scattering unit is designed to last for approximately 20,000 hours of continuous use.
Q: Can this sensor detect cigarette smoke effectively?
A: Yes, the laser scattering principle is highly effective at detecting fine particulate matter found in cigarette smoke, typically showing immediate spikes in PM2.5 readings.
Q: Is the output data compatible with Raspberry Pi?
A: Absolutely. Since the module uses a standard UART/TTL interface, you can easily connect it to the GPIO pins of a Raspberry Pi using a simple Python script.
Q: Does this module require an external library for Arduino?
A: While you can write your own parser for the UART data, we provide a sample library on our GitHub repository that simplifies reading PM2.5, temperature, and humidity values directly.
Q: How often should the sensor be calibrated?
A: The sensor comes factory-calibrated. For most applications, no further calibration is needed. However, for high-precision scientific use, we recommend checking against a reference device annually.
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