A compact OEM optical sensor measuring PM1, PM2.5 and PM10, built for integration into air quality monitors, HVAC equipment and other instruments that need accurate, drift-free particulate data.
NextPM is an optical particle sensor designed to be embedded in third-party equipment. Patented dual-angle detection and active humidity control keep readings stable over the sensor's lifetime, avoiding the drift that affects many low-cost optical sensors. It reports PM1, PM2.5, PM10 and TSP concentrations, along with particle-count channels, temperature and relative humidity, over UART or Modbus RS485.
| Technology | Optical, dual-angle detection |
|---|---|
| Outputs | PM1, PM2.5, PM10, TSP · particle channels 0.3–10 µm · temperature · relative humidity |
| Airflow | 2.5 L/min, internal pump |
| Particle size detection range | 0.3–10 µm diameter |
| Concentration detection range | 0–1000 µg/m³ (Arizona dust A1 equivalent) |
| Detection limit | < 1 µg/m³ |
| Linearity / repeatability error | < 5% / < 3% |
| Refresh rate | 1 / 10 / 60 sec, selectable |
| Communication | UART / Modbus RS485 (with converter) |
| Power supply | 5 VDC · < 80 mA in operation · < 20 mA in sleep mode |
| Lifetime (MTTF) | Up to 10 years |
| Operating conditions | -20 to +70 °C · 0–95% RH uncondensed · 500–1500 hPa |
| Dimensions / weight | 62 × 52.5 × 23.6 mm · 45 g |
| Certifications | CE · RoHS compliant |
TERA Sensor is a French manufacturer of particulate matter and gas sensors for air quality and cleanroom monitoring, part of Groupe TERA. Product information and images are provided by TERA Sensor (tera-sensor.com) and used with their permission. Specifications may vary by configuration; contact us for current details.
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