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Have you compared the Sensirion SEN55 against the Plantower sensors? I ask because I’ve recently picked up both and have played around with them each individual
by reassembled 3y ago
Have you compared the Sensirion SEN55 against the Plantower sensors? I ask because I’ve recently picked up both and have played around with them each individually but haven’t compared them for accuracy yet. The nice thing about the SEN55 is that it contains all of the sensors in one unit (PM1.0 to PM10.0, temperature, Relative Humidity, NOX and VOC).
They do cost a little bit more than the Plantower units, about $30-40USD. For anyone looking at the Sensirion sensors, be aware that the SEN5x products span a range, and only the SEN55 has all of the above sensors in one unit. I’ve found the Sensirion software to be pretty nice to work with. I was able to port their embedded i2c example repo to ESP32 with little trouble.
- ahaucnx 3y agoYes, we are looking at the SEN55. The reason we currently still use the Plantowers is that there is a lot more research out there on the Plantower and how it behaves in different environments.
- sarabveer 3y agoI would definitely like some research into the SEN5x line of sensors. I have three air quality monitors in the house. Two of them are AirGradient kits (Basic and Pro), with the other one I made myself using a SEN55 and SCD41. All of them are using ESPHome for the firmware. With the current very bad air quality in the US Northeast, I noticed that the SEN55 was reading much higher than the two Plantowers in the AirGradients. At one point, the SEN55 was reading around 200µg/m³, while the Plantowers were reading around 100µg/m³. I am planning on buying a second SEN55 to check this.
- hyperbovine 3y ago+1 for the SEN5X. Incredible little sensor. I picked up a devkit a year ago when it first came out, intending to build an OSS AQM around it, but alas, time and young kids got in the way. I'm really hoping it gains traction in the community.