The Grove - SEN55 is a high-performance all-in-one environmental sensor that accurately measures particulate matter (PM1.0, PM2.5, PM4, PM10), VOC, NOx, humidity, and temperature. Powered by Sensirion’s advanced sensing technology, this sensor module is ideal for applications in HVAC, air purifiers, smart homes, industrial monitoring, and air quality detection.
Its proprietary algorithms ensure accurate digital signal output and long-term reliability, while the Grove I2C interface simplifies integration with platforms such as Arduino, Raspberry Pi, and Seeeduino — no coding required.
Key Features
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All-in-one sensing solution for PM, VOC, NOx, RH, and temperature
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High accuracy and stability with pre-calibrated digital outputs
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Low power consumption: 6.8 mA in Measurement Mode, 2.6 mA in Idle
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Laser scattering method for precise particulate matter detection
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8 types of environmental data output every 1 second
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10+ years of robust performance with continuous 24/7 operation
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Easy plug-and-play integration via Grove I2C interface
Applications
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Heating, Ventilation, and Air Conditioning (HVAC) systems
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Air quality monitoring in homes and offices
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Respiratory healthcare & harmful gas alarms
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Environmental sensing for smart farms
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Industrial air quality and safety monitoring
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Particulate matter alerts (PM1.0 to PM10)
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Scientific experiments and research
Specification
Sensor Module
| Parameter | Value |
|---|---|
| Sampling Interval | 1 ± 0.03 s |
| Lifetime (24h operation) | >10 years |
| Acoustic Emission | 24 dB(A) |
| Acoustic Drift | +0.5 dB(A) / year |
Particulate Matter
| PM Type | Size Range (µm) |
|---|---|
| PM1.0 | 0.3 – 1.0 |
| PM2.5 | 0.3 – 2.5 |
| PM4 | 0.3 – 4.0 |
| PM10 | 0.3 – 10.0 |
Temperature & Humidity
| Parameter | Accuracy |
|---|---|
| Temperature (typical) | ±0.45 °C (@ 15–30°C, 50% RH) |
| Temperature (max) | ±0.7 °C (@ 15–30°C, 50% RH) |
| Humidity repeatability | < 60 s |
Gas Measurement
| Metric | VOC Index | NOx Index |
|---|---|---|
| Output Range | 1 – 500 | 1 – 500 |
| Device Variation | <±15 | <±25 |
| Repeatability | <±5 | <±10 |
Shipping List
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1 × Grove - All-in-One Environmental Sensor SEN55
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1 × Grove Cable
What is Grove?
Grove is Seeed Studio’s standardized modular prototyping ecosystem that simplifies hardware development. With over 400 plug-and-play modules, Grove allows you to build complex systems without soldering or wiring — ideal for both beginners and professionals.