Sensirion Particle, VOC, Humidity, and Temperature Sensor - SEN55

The SEN55 environmental node is a comprehensive sensor platform designed for precise measurement of various environmental parameters, including particulate matter, volatile organic compounds (VOCs), oxidizing gases like nitrogen oxides (NOx), humidity, and temperature.

With proprietary algorithms, this module simplifies integration into numerous applications, saving valuable project time and personnel resources compared to integrating these sensors individually. The SEN55 ensures reliable air quality measurement data.

The SEN55 employs the GHR style 'locking' JST connector and comes with a 6-pin compatible cable terminated in breadboard pins, facilitating easy connections. Note that the wire colors in the provided cable do not follow the standard 'red for 5V' convention. Refer to the provided image for correct wire color and pin function.

Features:

• Properties
  • Supply voltage: 4.5V
  • Average supply current: 63mA
  • Max. supply current: 110mA
  • Interfaces: I²C
  • Size (LxWxH): 52.8 x 43.6 x 22.3 mm
• Particulate Matter
  • Mass concentration precision: ±10%
  • Mass concentration range: 0 - 1000μg/m³
  • Lifetime: > 10 years
  • Particle size range: PM1.0, PM2.5, PM4, and PM10
• Temperature
  • Typical temperature accuracy: 0.45°C
  • Operating temperature range: -10 - 50°C
  • Response time (τ63%): < 60s
• Humidity
  • Typical relative humidity accuracy: 4.5 %RH
  • Operating relative humidity range: 0 - 90 %RH
  • Response time (τ63%): 20s
• VOC
  • Sensor output: 0-500 VOC Index
  • Measurement range: 0 - 1000ppm
  • Response time (τ63%): < 10s
  • Device-to-device variation: ±15% m.v.
  • Limit of detection: < 0.05 ppm of ethanol equivalents or < 10% of concentration setpoint, whichever is larger
  • Switch-on time: 1h
  • On-chip humidity compensation: Yes

Documents:

• Datasheet