Product Introduction
Range 0-5ppm, other ranges can also be customized;
Adopts an electrochemical sensor and features high measurement accuracy, fast response speed, long service life, and long-term stability and reliability;
The device output resolution can reach 0.01ppm and supports long-term 24-hour online monitoring;
Adopts anti-interference circuit design, able to withstand various strong electromagnetic interference on site such as variable frequency drives;
Optional high-quality OLED display, allowing direct on-site reading of values, and clear display even at night.
| Power supply | 10~30V DC (0~10V output type can only be powered by 24V) | ||||
| Output signal | 4~20mA、0~5V、0~10V | ||||
| Power consumption | 0.12W | ||||
| Temperature measurement range | -40℃~+80℃ | ||||
| Humidity measurement range | 0~100%RH | ||||
| Temperature Accuracy | ±0.5℃ | ||||
| Humidity accuracy | ±3%RH | ||||
| 工作温度 | -20~50℃ | ||||
| Working humidity | 15~90%RH non-condensing | ||||
| Pressure range | 91~110kPa | ||||
| Stability | ≤7% signal value/year | ||||
| Response time | ≤35s | ||||
| Preheating Time | ≥5min | ||||
| Formaldehyde zero drift (-20~40℃) | ≤±0.5ppm | ||||
| Repeatability | ≤2% | ||||
| Service life | ≥24 months | ||||
| Accuracy | Accuracy: ±5%FS (@1ppm、25℃、50%RH) |
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| 分辨率 | 0.01ppm |

Main Application Areas
- Indoor Air Quality Monitoring — Measures formaldehyde levels in HVAC ducts to ensure safe indoor air quality in buildings.
- Industrial Process Control — Monitors formaldehyde concentration in industrial pipelines for process optimization and safety.
- Environmental Monitoring — Used in environmental stations to detect formaldehyde emissions from industrial sources.
- Laboratory Research — Provides accurate formaldehyde measurement for scientific experiments and studies.
- Chemical Industry — Ensures safe formaldehyde levels in chemical production and storage areas.
Keywords:duct formaldehyde transmitter, CH2O sensor, pipeline formaldehyde monitor, electrochemical formaldehyde sensor, industrial formaldehyde detector, duct gas transmitter, formaldehyde concentration meter, AMT/RS-CH2O