AG-AQS-500 Air Quality
Multi-Parameter Air Quality Sensor
Four-in-one CO₂, VOC, temperature and humidity with BACnet MS/TP
Modbus RTU BACnet MS/TP
Features
- BACnet MS/TP native — direct object mapping to Reliable Controls, Siemens Desigo, Schneider
- Composite AQI score (0–500) as a single BACnet AI for simple BMS logic
- CO₂ ABC auto-calibration eliminates manual re-zeroing over product lifetime
Enquire about this product
No forms — email directly to sales@agcontrolli.com
24-month warranty · Technical support included
Specifications
| Parameters Measured | CO₂, VOC (tVOC), Temperature, Relative Humidity |
| CO₂ Range | 400–5000 ppm (NDIR) |
| CO₂ Accuracy | ±50 ppm ±3% of reading |
| VOC Range | 0–500 ppb (isobutylene equivalent) |
| Temperature Range | 0–50°C (±0.5°C) |
| Humidity Range | 0–100% RH (±3% RH) |
| Output Signal | RS-485 Modbus RTU, BACnet MS/TP |
| BACnet Objects | 6 AI objects: CO₂, VOC, T, RH, AQI, status |
| Supply Voltage | 24 V AC/DC |
| Housing | ABS wall plate, 86×86 mm |
| Certifications | CE, RoHS |
Applications
- WELL Building Standard and LEED IAQ monitoring
- Demand-controlled ventilation with CO₂ and VOC combined logic
- Open-plan office air quality dashboard integration
Compatible Platforms
Reliable Controls MACH-ProSysSiemens Desigo CCHoneywell EBISchneider EcoStruxureJohnson Controls Metasys
Works with any BMS that accepts Modbus RTU / BACnet MS/TP signals.
Other BMS & HVAC Sensors
AG-CO2-100
Room CO₂ Sensor with Display
NDIR CO₂ and temperature room sensor with LCD for demand-controlled ventilation
4–20 mA0–10 VModbus RTU
AG-CO2-200 Duct CO₂ Sensor
Duct-mount NDIR CO₂ sensor for AHU return air demand ventilation control
4–20 mA0–10 VModbus RTU
AG-THR-300 Temperature & Humidity BMS Sensor
Wall-mount BMS T+RH sensor with large LCD and lockable setpoint adjustment
4–20 mA0–10 VModbus RTU
Ready to specify?
Send us your pipe size, media, range and protocol — we'll confirm availability and lead time.
sales@agcontrolli.com