CDTH series carbon dioxide ( CO2 ) / temperature / humidity transmitters are designed for monitoring & controlling indoor air quality, temperature and humidity in one unit. CDTHD CO2/ Temperature/ Humidity Transmitter
CDTHD Transmitter Features:
| Carbon dioxide (CO2 ) |
| Sensor: |
NDIR sensor, with ABC algorithm* |
| Sampling Method: |
diffusion |
| Accuracy: |
(40+3%MV) ppm |
| Response time: |
<10s (30cc/min, low airflow) |
| Drift: |
<±10ppm/year |
| Range: |
0~2000ppm (measure range 400~2000ppm) |
| Output: |
4~20mA, 0~10V, RS485/Modbus |
| Temperature |
| Sensor: |
Digital, RTD or thermistor, see models |
| Range: |
0~50°C |
| Accuracy: |
see accuracy table |
| Output: |
4~20mA, 0~10V, RS485/Modbus or RTD / thermistor |
| Relative Humidity |
| Sensor: |
Digital polymer |
| Range: |
0~100%RH |
| Accuracy: |
see accuracy table |
| Hysteresis: |
<±1%RH |
