PMsense is a PM1.0, PM2.5 and PM10 Particulate Matter transmitter with RS485 Modbus-RTU output, suitable for outdoor air quality monitoring.
The dust particles concentration is measured using the laser scattering principle.
The transmitter is maintenance-free and has fast response, high sensitivity and an excellent stability.
The PM sensor can be operated in two ways:
- Continuous operating mode: the sensor is always active and measurements are continuously taken. In this mode at least 10,000 hours of PM sensor life are guaranteed.
- Discontinuous operating mode (default): the sensor is activated at regular intervals, when measurements has to be taken. This mode increases the PM sensor life.
On request, an optional CO2 sensor can be integrated in the trasmitter.
The transmitter can be supplied with up to 2 optional configurable 4…20 mA, 0…5 V or 0…10 V analog outputs.
More background information on why to measure Particulate Matter (PM) can be found here.