Research Article
Design and Development of a Low-Cost, Portable Monitoring Device for Indoor Environment Quality
Table 2
Sensor module names, measurement ranges, and accuracy.
| Type | Module | Measurement range | Accuracy |
| Temperature | SHT31 | 0–100% | ±2% RH | Humidity | SHT31 | −40 to 125°C | ±0.3°C | PM2.5/PM10 | HPMA115S0 | 0–1000 μg/m3 | ±15% | Total VOC (TVOC1) | CCS811 | 0–1200 ppb | N/A | Total VOC (TVOC2) | iAQ-Core C | 125–600 ppb | N/A | Total VOC (TVOC3) | MiCS-VZ-89TE | 0–1000 ppb | N/A | CO2 | T6713 | 0–5000 ppm | ±25 ppm | CO | LLC 110-102 | 0–1000 ppm | ±2 ppm | Indoor air quality | LLC 110-801 | 0–100 ppm | ±2 ppm | Illuminance (light) | TSL2561 | 0–17,000 lux | ±5 lux | Microphone | Adafruit #1063 | 0–80 dB | ±5 dB |
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