High-precision components with pyroelectric infrared module
Fast and simple installation method
Wall-mounted and duct-mounted types available
Adjustable insertion depth
Multiple output modes and jumper-selectable options
AC/DC power supply selectable
IP65 enclosure rating (duct-mounted type)
ABC automatic calibration
Product Performance
| Specification | Details |
| Operating Voltage | 24 VAC/VDC |
| Signal Output | 420 mA or 010 V (jumper-selectable) or Modbus RS485 |
| Measuring Range | 0–2000 ppm (standard), 0–5000 ppm (optional), other ranges available on request |
| Installation Method | Wall-mounted and duct-mounted |
| Ambient Light | Optional |
| Terminal Block Material | Copper |
| Housing Material | ABS+PC |
| Accuracy Error | ±40 ppm or ±3% of reading (whichever is greater) |
| Warm-up Time | ＜1 min (full-scale stabilization ＜15 min) |
| Calibration Function | Built-in ambient calibration function (ABC) |
| Probe Operating Temperature | -25 ~ 50℃ |
| Operating Environment | -10 ~ 50℃, 0–95% RH (non-condensing) |
| Measurement | Carbon Dioxide (CO₂) concentration |
| Sensor Type | NDIR infrared sensor (typical) |
| Output Signal | 0-10V / 4-20mA / RS485 (Modbus RTU), optional display |
| Power Supply | DC 24V (typical), refer to product specifications |
| Mounting | Wall-mount / Duct-mount options |
| Measuring Range | Per project (typical 0-2000ppm/0-5000ppm) |
| Typical Applications | IAQ monitoring, fresh air control, offices, schools |
Note: Specifications are subject to product datasheets and project configuration. Contact Zhiyinghui Technical Team for detailed specs.
| Scenario | Monitoring/Control Need | Recommended Config |
|---|---|---|
| Classroom | CO2 monitoring for fresh air regulation and student focus | Wall-mount, 0-10V/4-20mA, fresh air linkage |
| Meeting Room | Auto increase fresh air when CO2 rises in crowded spaces | Wall-mount, RS485/Modbus, BMS integration |
| Hospital Ward | Ward air quality monitoring, infection prevention | Wall-mount, 4-20mA, central nurse station monitoring |
| Open Office | CO2 monitoring in open-plan areas for comfort | Wall-mount, 0-10V, VAV linkage |
| Gym/Fitness Center | CO2 monitoring during high-intensity exercise | Wall-mount, wide range, 4-20mA |
Above are typical scenario recommendations. For specific selection, please contact Zhiyinghui Technical Team for professional advice.
