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Liveable Cities

General Description

The Liveable Cities (a division of LED Roadway Lighting Limited) air quality sensors provide real-time measurements of PM1.0, PM2.5 and PM10 mass concentrations (SLX-PM2.5) and real-time measurements of NO2 (SLX-NO2) and O3 (SLX-O3). These air quality sensors are attached on top of a streetlight via streetlight ANSI-standard receptacle.

Principle of Operation

The Liveable Cities – SLX-PM2.5 uses the Alphasense OPC-R2 sensor as the raw PM sensor which uses laser beams to detect particles from 0.30 to 12.4 µm in diameter with 16 software bins. Count measurements are converted into mass concentrations of PM1.0, PM2.5 & PM10 using embedded algorithms. The Liveable Cities – SLX-NO2 uses the Alphasense NO2-B43F gas sensitive electrochemical sensors to measure NO2. The Liveable Cities – SLX-O3 uses the Renesas ZMOD4510 gas sensitive metal-oxide to measure O3


  • Dimensions: SLX-PM2.5: 7 in (H) x 3.5 in (Diameter); SLX-NO2: 7.5 in (H) x 3.5 in (Diameter); SLX-O3: 7.5 in (H) x 3.5 in (Diameter)
  • Weight: SLX-PM2.5: 590 g; SLX-NO2: 490 g; SLX-O3: 490 g
  • Battery: N/A
  • Power supply: Power base/lamp post power
  • Sensor lifetime: N/A
  • Clock function: No
  • Sampling mechanism: Fan
  • Environmental operating conditions: SLX-PM2.5: -10 to 45 °C; SLX-NO2: -30 to 40 °C; SLX-O3: -40 to 65 °C
  • Internal data logging: Yes, can store up to one day of data
  • Data communication: Cellular (LTE-M)
  • Data logging and retrieval: data can be logged and retrieved on Liveable Cities’ central management system (Smartlinx Software)
  • Weatherproof: Yes


  • Outdoor air quality monitoring
  • Smart Cities

Manufacturer's product webpage

    South Coast Air Quality Management District

    21865 Copley Dr, Diamond Bar, CA 91765



    © 2024 South Coast Air Quality Management District