SparkFun
Sensirion Particle, VOC, Humidity, and Temperature Sensor - SEN55
· MPN: SEN-23715
The SEN55 environmental node is a straightforward, all-in-one sensor solution platform for the accurate measurement of various environmental parameters, such...
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.
Features:
- 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
Documents:
Jargon buster
Plain-language definitions for the technical terms used above.
- Matter
- A smart home connectivity standard designed to let devices work across different ecosystems. It matters if you want a project to integrate more easily with platforms such as Apple Home, Google Home, or other Matter-compatible systems.
- NOx
- NOx means nitrogen oxides, a group of gases often linked to combustion sources such as gas stoves, heaters, and vehicle exhaust. A NOx index can help show changes in indoor air quality, especially where combustion or outdoor pollution may affect the room.
- particulate matter
- Particulate matter means tiny particles suspended in the air, such as dust, smoke, pollen, or pollution. A sensor that measures it is useful for air-quality projects because particle levels can affect comfort and health.
- PM1.0
- PM1.0 refers to airborne particles with a diameter of about 1 micrometre or smaller. This size category matters because smaller particles can stay airborne longer and may come from sources such as smoke or combustion.
- PM10
- PM10 refers to airborne particles with a diameter of about 10 micrometres or smaller. It includes larger dust and pollen-like particles, so it is useful for detecting coarser airborne pollution.
- PM2.5
- PM2.5 refers to airborne particles with a diameter of about 2.5 micrometres or smaller. It is a common air-quality measurement because these fine particles can be breathed deep into the lungs.
- PM4
- PM4 refers to airborne particles with a diameter of about 4 micrometres or smaller. It gives another particle-size category, which can help compare different dust, smoke, or indoor pollution sources.
- ppm
- ppm means parts per million, a common way to express very small gas concentrations in air. For CO₂ sensors, the ppm range tells you what levels the sensor can measure, such as normal indoor air through to poorly ventilated spaces.
- SEN55
- A Sensirion environmental sensor module that measures particulate matter, VOC-related air quality, NOx-related air quality, temperature, and humidity. The part number matters because it tells you this board can report several indoor air-quality readings from one sensing module.
- VOC
- Volatile organic compounds are gases released from things like paints, cleaners, smoke, and some plastics. A VOC reading helps indicate indoor air quality, but it is usually an index or estimate rather than a direct identification of each chemical.
Find this product in
SEN5x Environmental Node Datasheet
Datasheet · 1.3 MB · Click any page to view full size
Supplier page — sparkfun.com
Supplier Description · 556.7 KB · Click any page to view full size
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