Sensirion SEN66 Air Quality Sensor

Sensirion SEN66 Air Quality Sensor allows users to experience the future of air quality sensing with a compact and powerful device. It combines multiple sensors in a never-before-seen form factor and can measure up to nine environmental parameters (PM1, PM2.5, PM4, PM10, T, RH, VOC Index, NOx Index, CO2). The innovative design streamlines integration, lowers costs, and enables customization. At the core of the Sensirion SEN66 is a brand-new, miniaturized, MEMS-based particulate matter sensing component – the SPS6x.

Features

  • PM, RH&T, VOC, NOx, CO2 sensing platform
  • Fast and easy integration
  • 10 years dust-resistant
  • Patented Sheath Flow technology
  • Fully calibrated digital output
  • One node for up to nine data signals
  • Integrated compensation algorithms
  • Ready for California Title 24, RESET® and WELL Building Standard™

Specifications

  • 3.15V to 3.45V supply voltage
  • 90000µA average supply current
  • ±10% mass concentration precision
  • 0-1000µg/m3 mass concentration range
  • >10-year lifetime
  • PM1.0, PM2.5, PM4 and PM10 particle size range
  • 4.5%RH typical relative humidity accuracy
  • CO2
    • 0 to 40000ppm CO2 output range
    • ±50.0 accuracy
  • 0VOC to 500VOC index sensor output
  • I2C interface
  • 55.2mm x 25.6nn x 21.3mm size (LxWxH)
  • 45°C typical temperature accuracy

Functional Block Diagram

Block Diagram - Sensirion SEN66 Air Quality Sensor
Published: 2025-11-26 | Updated: 2026-01-04