DSM501A PM2.5 Dust Sensor

Specifications

• Type: PM2.5 Dust Sensor
• Model: DSM501A
• Measurement Principle: Light scattering principle
• Output Signal: Analog voltage output and digital output (TTL level)
• Supply Voltage: DC 5V ± 0.25V
• Current Consumption: < 100 mA (during operation), < 50 mA (standby)
• Dimensions: 45 mm x 45 mm x 15 mm
• Weight: Approximately 40 grams

Measurement Range

• Particulate Matter Size: PM2.5 (particles with a diameter less than 2.5 micrometers)
• Measurement Range: 0 – 999 μg/m³

Performance Characteristics

• Response Time: < 1 second
• Accuracy: ± 10% (in the range of 0 to 500 μg/m³)
• Calibration: Factory calibrated; periodic calibration recommended for accuracy
• Temperature Range: -10°C to +50°C
• Humidity Range: 0% to 99% RH (non-condensing)

Communication Interface

• Analog Output: 0 – 5V proportional to the concentration of PM2.5
• Digital Output: TTL level signal for data communication

Features

• Compact Design: Easy to integrate into various applications and systems.
• Low Power Consumption: Ideal for battery-powered applications.
• Real-Time Monitoring: Provides continuous monitoring of air quality.
• Robust Construction: Designed for various environmental conditions.
• Compatibility: Can be interfaced with microcontrollers, Raspberry Pi, Arduino, and other data acquisition systems.

Applications

• Air quality monitoring systems
• HVAC systems
• Environmental monitoring
• Indoor air quality assessment
• Industrial dust monitoring
• Personal air quality meters

Operating Instructions

• Power Supply: Connect to a stable DC 5V power supply.
• Output Connection: Connect the analog output to an ADC or microcontroller for data collection.
• Calibration: It is recommended to calibrate the sensor periodically using a standard reference sensor for accuracy.

Precautions

• Avoid direct exposure to water and high humidity conditions to prevent sensor damage.
• Ensure proper ventilation during operation to maintain accurate readings.