Room CO2 Detector RC 24 and Room CO2 + RH + T Detector RCHT 24

• LED Indicators (RC 24):
  • Red LED: Poor air quality (1000-2000 ppm).
  • Yellow LED: Moderate air quality (800-1000 ppm).
  • Green LED: Good air quality (450-800 ppm).
  • Alerts students and teachers to take action, such as increasing ventilation when CO2 levels are high.
• Output Signals: Selectable analog output of 4-20 mA, 0-10 Vdc, or 0-5 Vdc. Modbus communication is also supported.
• Continuous Monitoring: Provides real-time air quality updates, improving comfort and reducing sick days by ensuring a healthier environment.
• Energy Efficiency: Promotes targeted ventilation to quickly reduce CO2 concentrations, e.g., lowering levels from 1400 ppm to 800 ppm in approximately two minutes.
• RCHT 24 Additional Features: Includes built-in humidity and temperature measurement for a comprehensive indoor air quality assessment.

CO2 Specifications (RC 24 and RCHT 24)

• Sensor Type: Dual Beam NDIR.
• Range: 0-2000 ppm, adjustable.
• Accuracy: ±70 ppm or ±5% of reading.
• Drift: <50 ppm/year (full scale).

Humidity Specifications (RCHT 24 Only)

• Sensor Type:
• Range: 0-100% rH, non-condensing.
• Accuracy: ±5% @ 25°C, 20-80% rH.
• Drift: <0.5% rH/year.

Temperature Specifications (RCHT 24 Only)

• Sensor Type: 10K thermistor.
• Range: -30°C to +70°C.
• Accuracy: < ±0.5°C @ 25°C.

General Specifications

• Power Supply: 12-24 V ac/dc, ±10%, 1 watt typical.
• Output Signal Drive: >500Ω for mA mode, 75mA max output drive for voltage mode.
• Operating Temperature: 0 to +50°C, 0-95% rH non-condensing.
• Plastic Housing: UL 94V0 flammability rating.

• Ideal for classrooms, offices, and other indoor spaces requiring continuous air quality monitoring.
• Helps maintain a healthy indoor environment, improving concentration, reducing fatigue, and minimizing sick days.
• Can be integrated into automatic monitoring and control systems for real-time CO2 management.