Description
The SDS011 is a laser-based particulate matter sensor from Nova Fitness, designed for accurate PM2.5 and PM10 concentration measurement in indoor air quality monitoring, purifiers, and DIY environmental stations. It uses laser scattering principles with an internal fan to draw air through the detection chamber, where particles from 0.3µm to 10µm scatter light that is measured by a photodiode . Unlike analog dust sensors, the SDS011 provides digital UART output, delivering precise PM2.5 and PM10 values in µg/m³ without requiring ADC conversion or complex signal processing.
The USB adapter module included with this product simplifies connection to a computer for immediate testing and data logging. The adapter uses a CH340G USB-to-serial chip and provides a standard USB Type-A connection to the sensor’s 5-pin interface . This makes the SDS011 accessible for both individual makers building Arduino-based monitors and business purchasers seeking a cost-effective sensor for volume deployment in air quality networks.
The sensor features a built-in fan for active sampling, a response time of less than 10 seconds, and a data update rate of 1Hz . It operates from a 5V supply with 90mA typical current, and includes a sleep mode drawing under 4mA for power-sensitive applications . The SDS011 is factory-calibrated, though field validation against reference instruments is recommended for applications requiring higher accuracy .
Features
-
Dual PM Output: Provides both PM2.5 (0–1000 µg/m³) and PM10 (0–2000 µg/m³) concentrations via digital UART .
-
Laser Scattering Detection: Imported laser and photosensitive components for stable, reliable measurements with 0.3µm minimum resolution .
-
Built-in Fan for Active Sampling: Draws ambient air into the optical chamber, eliminating the need for external airflow components .
-
USB Adapter Included: CH340G-based adapter enables direct connection to a computer for testing and data logging .
-
Fast Response and High Update Rate: Response time under 10 seconds with 1Hz data output .
-
Sleep Mode for Power Savings: Current drops below 4mA when laser and fan are stopped .
-
Compact and Lightweight: 71×70×23mm, approximately 59g, suitable for integration into portable monitors and enclosures .
-
Factory Calibrated: Ships with calibration; periodic field verification recommended for critical applications .
Technical Specifications
| Parameter | Specification |
|---|---|
| Measurement Output | PM2.5: 0.0–1000.0 µg/m³; PM10: 0.0–2000.0 µg/m³ |
| Minimum Detectable Particle | 0.3 µm |
| Supply Voltage | 5V DC |
| Working Current | 90mA ± 10mA |
| Sleep Current | < 4mA |
| Response Time | < 10 seconds |
| Data Update Rate | 1 Hz (1 reading per second) |
| Communication Interface | UART (9600 baud, 8N1) |
| Operating Temperature | -10°C to +50°C |
| Operating Humidity | Maximum 70% RH (non-condensing) |
| Dimensions | 71 × 70 × 23 mm |
Reviews
There are no reviews yet.