WSS-23 -- CO2, PM2.5, PM10

1. Introduction
WSS-23 is a RS485 Air Quality sensor. It can monitor CO2, PM2.5 and PM10 at the same time.
WSS-23 uses weather proof shield which can make sure the sensors are well protected against UV & radiation.
1.1 Feature
- RS485 CO2, PM2.5, PM10 sensor
- NDIR to measure CO2 with Internal Temperature Compensation
- Laser Beam Scattering to PM2.5 and PM10
1.2 Specification
- CO2 Range: 0 ~ 5000ppm, accuracy: ±3%F•S(25℃)
- CO2 resolution: 1ppm
- PM2.5/PM10 Range: 0 ~ 1000μg/m3 , accuracy ±3%F•S(25℃)
- PM2.5/PM10 resolution: 1μg/m3
- Input Power: DC 7 ~ 24v
- Preheat time: 3min
- Interface: RS485
- Default Baud Rate (with WSC2-L host): 4800
- Working Temperature:
- CO2: 0℃ ~ 50℃;
- PM2.5/PM10: -30 ~ 50℃
- Working Humidity:
- PM2.5/PM10: 15 ~ 80%RH (no dewing)
- CO2: 0 ~ 95%RH
- Power Consumption: 50mA@ 12v.
1.3 Wiring

1.4 Device Dimension

1.5 Installation Notice
Do not power on while connect the cables. Double check the wiring before power on.


1.6 RS485 Commands
The RS485 command is as follows: Weather_Sensors_Modbus_Command_List