The SEN55 environmental node is a straightforward, all-in-one sensor solution platform for the accurate measurement of various environmental parameters, such as particulate matter, volatile organic compounds (VOCs), oxidizing gases, such as nitrogen oxides (NOx), as well as humidity & temperature.

Thanks to proprietary algorithms, the module enables straightforward integration into various applications. This allows you to save valuable project time and personnel resources compared to integrating all of these separately. The SEN55 provides reliable air quality measurement data.

The SEN55 uses the the GHR style 'locking' JST connector. This module includes a 6-pin compatible cable that is terminated in breadboard pins making it very easy to connect to the SEN54. The only downside is that we use our generic 6-pin GHR cable and the wire colors do not match normal 'red for 5V' sort of connections. Please see this image for the correct wire color and pin function.

• Properties
  • Supply voltage: 4.5V
  • Average supply current: 63000uA
  • Max. supply current: 110000uA
  • Interfaces: I²C
  • Size (LxWxH): 52.8 x 43.6 x 22.3 mm³
• 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
  • Typ. temperature accuracy: 0.45°C
  • Operating temperature range: -10 - 50°C
  • Response time(τ63%): < 60s
• Humidity
  • Typ. 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 var.: ±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

• Datasheet