SDS011 High Precision Laser 2.5 Air Quality Detection Sensor

Specifications

• Sensor Type: Laser Scattering Sensor
• Applications: Air quality monitoring, environment assessment, industrial usage, indoor air purification systems, and IoT integrations.
• Supported Measurements:
  • PM2.5 (Particulate Matter ≤ 2.5 microns)
  • PM10 (Particulate Matter ≤ 10 microns)

• Particle Detection Range: 0.3μm – 10μm
• Concentration Range:
  • 0 – 999 μg/m³
• Precision: ±10% at 100 to 500 μg/m³
• Resolution: 0.3 μg/m³
• Response Time: ≤ 10 seconds
• Stability: Less than 10% deviation over 10,000 hours of continuous use.
• Calibration: Factory-calibrated for enhanced precision.

Electrical Characteristics

• Input Voltage: DC 5V ± 0.1V
• Operating Current: ≤ 70mA
• Standby Current: < 10μA
• Interface: UART (Default baud rate: 9600 bps) and PWM output.
• Output Modes:
  • UART: Provides continuous real-time data in a serial format.
  • PWM: Output proportional to PM concentration.

Mechanical Characteristics

• Dimensions: 71mm x 70mm x 23mm (L x W x H)
• Weight: Approximately 70g
• Mounting: Through-hole design for easy integration into systems.
• Air Inlet: Fan-assisted air intake for continuous sampling.

Environmental Conditions

• Operating Temperature: -10°C to +50°C
• Operating Humidity: 0 – 70% RH (non-condensing)
• Storage Temperature: -20°C to +60°C

Features

1. High Precision: Laser-based scattering technology ensures reliable detection.
2. Real-time Monitoring: Outputs data every second.
3. Integrated Fan: Ensures steady airflow for accurate readings.
4. Durability: Long lifespan of up to 8,000 hours of continuous operation.
5. Compact Design: Suitable for portable and embedded applications.
6. Low Power Consumption: Ideal for battery-powered devices.

Data Output Protocol

• UART Output:
  • Data Frame Length: 10 bytes
  • Includes PM2.5 and PM10 concentrations in μg/m³.
• PWM Output:
  • Duty cycle is proportional to the concentration levels.
  • Adjustable range for different resolutions.

Applications

• Indoor and outdoor air quality monitoring
• Smart homes and IoT devices
• Environmental protection systems
• HVAC systems
• Industrial air pollution control