The Honeywell TR50 Series IAQ Sensor is an advanced, configurable device for commercial buildings. It monitors: Temperature (T), Relative Humidity (RH), Carbon Dioxide (CO2), Particulate Matter (PM1.0, PM2.5, PM10), Total Volatile Organic Compound (TVOC). Flexible building automation system integration via Modbus, BACnet, or Sylk bus protocols. Customizable display and sensor thresholds with stable long-term accuracy for minimal maintenance or recalibration.