Panasonic SN-GC Laser PM Sensors: High-Precision Air Quality Monitoring with Laser Scattering Technology and Auto-Calibration Features

Panasonic’s Laser-Type PM Sensor expands its extensive range of specialty sensor solutions, offering a reliable and versatile option for air quality monitoring. The SN-GC Series Laser-Type Air Quality Sensors are engineered for both indoor and outdoor environments, catering to industries like retail, medical, and smart buildings. With the ability to detect a wide range of particulate matter, including dust, smoke, and emissions from sources such as fireplaces and construction materials, the sensors comply with RoHS and REACH standards.

This long-life air quality sensor provides simple I2C and UART (TTL) connectivity, outperforming traditional LED-based designs in precision and functionality. It accurately detects PM2.5, PM10, and PM1 particles, leveraging a laser diode for superior sensitivity, high accuracy, and rapid response times. Additional features like an auto-calibration function and an optimized air pathway structure reduce dust accumulation, ensuring consistent performance.

With a compact form factor of W37 x D37 x H12 mm, this all-in-one air quality sensor delivers exceptional precision and durability. It is ideal for applications such as HVAC systems, air conditioners, air purifiers, IoT devices, environmental monitoring, and test & measurement, serving markets like building automation, smart homes, and industrial testing.

Particulate Matter (PM) sensors are reliably able to detect smoke, environmental dust, and other unwanted dangerous pollutants in the air that surround us. SN-GCJA5 type has excellent accuracy and quick response based on laser scattering technology.

Panasonic SN-GCJA5 Laser Particulate Matter (PM) Sensors are comprised of an onboard microprocessor, micro-fan, Laser Diode (LD), and Photo-Diode (PD). The LD emits light into the detection area, and the PD receives the light and detects the floating particles in the air. These sensor fans operate based on the amount of dust particles surrounding the LD, extending the sensors’ lifespan.

PM Air Quality SN-GCJA5 Sensor specifications:

• Operating Voltage: 5V DC ±10%
• Current Consumption: <100mA
• Operating Temperature Range: -10°C to 60°C, up to 95% RH
• Storage Temperature Range: -40°C to 70°C, up to 95% RH
• Minimum Detectable Particle Size: 0.3μm
• Measurement Range:
  • UART: 0μg/m³ to 2,000μg/m³
  • I2C: 0μg/m³ to X,XXXμg/m³
• Maximum Consistency Error: ±10% (for 35µg/m³ < PM < 1,000µg/m³)
• Response Time: 1 second
• Time to First Reading: 8 seconds
• Initial Stability Time: Approx. 28 seconds (8 seconds for initialization, 20 seconds for average processing)
• Interface Expansion: I2C & UART (TTL)
• Weight: Approx. 12 grams

PM Air Quality SN-GCQB1 Sensor specifications:

• Operating Voltage: 5V DC ±10%
• Power Consumption: <100mA
• Temperature Ranges:
  • Operating: -10°C to 60°C, up to 95% RH
  • Storage: -40°C to 70°C, up to 95% RH
• Particle Detection:
  • Minimum Size: 0.3μm
  • Measurement Range:
    • UART: 0μg/m³ to 2,000μg/m³
    • I2C: 0μg/m³ to X,XXXμg/m³
• Accuracy: ±10% (for 35µg/m³ < PM < 1,000µg/m³)
• Performance Metrics:
  • Response Time: 1 second
  • Time to First Reading: 8 seconds
  • Initial Stability Time: Approx. 28 seconds (8 seconds for initialization, 20 seconds for average processing)
• Connectivity: I2C & UART (TTL) interfaces
• Weight: Approx. 12 grams

The SN-GCJA5 sensors offer high accuracy, sensitivity, and fast response, with an auto-calibration feature and optimized air pathway to minimize dust accumulation. These sensors are ideal for air purifiers, fans, and air conditioners.

The SN-GC Series, including the SN-GCQB1, provides compact, precise indoor and outdoor air quality monitoring solutions. The SN-GCQB1 detects temperature, humidity, TVOC, eCO2, and particulate matter (PM1.0, PM2.5, PM10) with a laser diode and onboard microprocessor, ensuring over 10 years of reliable performance.

Previously, we discussed various air quality sensors, including Renesas RRH62000, ScioSense’s ENS161 and ENS160, Sensirion’s SGP41 CMOSens/MOXSens and SGP40 VOC sensor, and Renesas’ ZMOD4510 and ZMOD4410. If you’re interested in learning more about these products, please feel free to explore them.

The SN-GCJA5 Air Quality Sensor is available on Mouser for $22.95 (without wire), while the SN-GCQB1 Air Quality Sensor is priced at $34.41. For more details, visit the company’s product page.