The MMD212 laser dust sensor is a digital universal particle concentration sensor that can be used to obtain the mass concentration (μg/m3) of suspended particles in the air, i.e. PM 1.0 , PM2.5 , and PM 10 , and the number of 0.3, 0.5, 1.0, 2.5, 5.0, and 10um particles per unit volume , and output them in the form of a digital interface. This sensor can be embedded in various instruments or environmental improvement equipment related to the concentration of suspended particles in the air to provide them with timely and accurate concentration data.
● Air quality monitoring equipment, portable instruments, air purifiers
● Fresh air ventilation system, air conditioning, smart home equipment
● Hospitals, hotels, schools and other public places
● Minimum resolution particle size 0.3 microns
● All-round shielding design to resist static interference
● Long service life, accurate and stable data
● 12 mm ultra-thin thickness, compact size
| Detection Type | PM 2.5 , PM 10 , PM1.0 mass concentration ( μg /m3) | |
| Number of particles of 0.3 0.5 1.0 2.5 5.0 10um per unit volume | ||
| Examination Range | 0~1000μg/m3 (expandable ) | |
| Resolution | 1μg/m3 | |
| Detection Accuracy | 0~100 μg/m3: ± 10μg/m3 | |
| 101~1000μg/m3: ±10%reading | ||
| Batch data consistency ≥90% | ||
| Operating Voltage | DC 5V±0.1V | |
| Working Current | ≤100mA (@5V power supply) | |
| Stand-by Current | ≤ 200μA (@5V power supply) | |
| Stable Schedule | ≤8s | |
| Detection Frequency | Data is updated once per second (default ) | |
| Output Method | Default output | UART ( 3.3V_TTL level) |
| reserved | PWM (off by default) | |
| Service Life | ＞40000 hours ( continuously working ) | |
| Reference Size | 47.8x36.8x12.0 mm | |
| Operating Temperature | -10 ℃ ～ 50℃ | |
| Working Humidity | 0 ～99 % RH (no condensation) | |
| Storage Temperature | - 30 ℃～ 60 ℃ | |
| Storage Humidity | 0～99%RH (no condensation) | |
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