AG-CO2-200 CO₂ Sensors
Duct CO₂ Sensor
Duct-mount NDIR CO₂ sensor for AHU return air demand ventilation control
4–20 mA 0–10 V Modbus RTU
Features
- SS probe for humid duct environments
- Integral flow-through diffuser for fast response in high-velocity ducts
- BMS-triggered zero and span calibration via digital input
Enquire about this product
No forms — email directly to sales@agcontrolli.com
24-month warranty · Technical support included
Specifications
| CO₂ Range | 0–2000 ppm |
| CO₂ Accuracy | ±50 ppm ±3% of reading |
| CO₂ Technology | NDIR single-beam, ABC Logic auto-calibration |
| Output Signal | 4–20 mA, 0–10 V, RS-485 Modbus RTU |
| Supply Voltage | 18–30 V DC |
| Probe Length | 168 mm (standard) / 340 mm (large duct) |
| Mounting | Duct flange, 1" NPT or ISO 7/1 |
| Duct Air Temperature | -10 to +50°C |
| Protection Rating | IP54 |
| Certifications | CE, RoHS |
Applications
- AHU return air CO₂ monitoring for DCV control
- AHU supply fresh-air CO₂ reference measurement
Compatible Platforms
Reliable Controls MACH-ProSysSiemens Desigo CCHoneywell EBISchneider EcoStruxureJohnson Controls Metasys
Works with any BMS or controller that accepts 4–20 mA / 0–10 V / Modbus RTU signals.
Other BMS & HVAC Sensors
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
AG-DPS-400 Duct Differential Pressure Sensor
MEMS duct DP sensor for AHU filter monitoring and variable-speed fan control
4–20 mA0–10 VModbus RTU
AG-AQS-500 Multi-Parameter Air Quality Sensor
Four-in-one CO₂, VOC, temperature and humidity with BACnet MS/TP
Modbus RTUBACnet MS/TP
Ready to specify?
Send us your mounting location, range and output signal — we'll confirm availability and lead time.
sales@agcontrolli.com