Infrared Optical Scattering Lampblack Concentration Sensor with Anti-Interference Design and Low Power Consumption for PM2.5 Detection
Lampblack Concentration Sensor KGD-PM-221
Product Introduction
The KGD-PM-221 infrared lampblack sensor module adopts the principle of optical scattering and can detect the changing trend of the concentration of particulate matter in the air with particle sizes between 0.3μm and 10μm. The sensor has an infrared light-emitting diode and a photosensitive tube built-in. When the light emitted by the light-emitting diode encounters particulate matter, reflected light will be generated. The photoelectric sensor reflects the concentration of particulate matter in the air by detecting the intensity of the reflected light. The sensor can communicate and output the mass concentration of particulate matter through a serial port signal.
Product Features
- Electromagnetic shielding design for anti-interference.
- Small in size and high in precision.
- Design of pollution-proof air channels for long-term operation.
- Low power consumption and wide measurement range.
- Short response time.
Technical Parameters
| Detected Object | Lampblack concentration |
| Data Output | PM2.5 |
| Detection Accuracy | ±30ug/m³ or ±30% of the reading (@25±2℃, 50%±10%RH) |
| Operating Conditions | -20℃～+75℃, 0~95%RH (non-condensing) |
| Storage Conditions | -40℃～+85℃, 0~95%RH (non-condensing) |
| Operating Voltage | DC 5V±0.2V, with a ripple of less than 100mV |
| Operating Current | ≤30 mA |
| Communication Interface | UART: 4.5V level; PWM: 4.5V level |
| Product Dimensions | W66.8H38.8D21.6mm |
| Product Service Life | ≥5 years |
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