Sensirion SEN55-SDN-T Optical air quality sensor

Product detailed description

The SEN55-SDN-T from Sensirion integrates sensors for Particulate Matter (PM), Volatile Organic Compounds (VOC index, indoor air quality in layman's terms), Relative Humidity (RH), Temperature (T), Nitrogen Oxides (NOx) and a microcontroller. The sensor communicates with your board (Arduino, ESP8266/ESP32, Raspberry Pi) via I2C.

Although the module is powered at 5V (±0.5V), the output is 3.3V compatible.

The module can measure particulate matter from 0.3 to 10um, temperature from -10 to 50°C, humidity from 0-90% RH, VOC index and NOx. The VOC index is a dimensionless number that indicates the quality of the indoor environment. Its calculation can take hours or days.

The VOC index value can be divided into three parts 0 - 99 clean air, 100 - 249 compliant air, above 250 poor quality air.

The SEL pin must be connected to GND before connecting the module to power.

The module is supplied without a connection cable. To connect it to our LaskaKit AirBoard-8266 board, you can use a connection cable.

Specifications:

• Manufacturer: Sensirion
• Power: 4.5V to 5.5V
• Average consumption during measurement: 60mA
• Maximum consumption: 110mA (16us)
• Quiescent consumption: 2.6mA
• Measuring range: from 0µg/m³ to 1000µg/m³
• Measurement accuracy (PM1 and PM2.5):
  • ± 5µg/m³ + 5% of measured value @ 0 to 100µg/m³
  • ± 10% of measured value @ 100 to 1000µg/m³
• Measurement accuracy (PM4 and PM10):
  • ± 25µg/m³ @ 0 to 100µg/m³
  • ± 25% of measured value @ 100 to 1000µg/m³
• Particulate matter:
  • PM1.0: 0.3 - 1 µm
  • PM2.5: 0.3 - 2.5 um
  • PM4: 0.3 - 4 µm
  • PM10: 0.3 - 10 µm
• Typical measurement accuracy (temperature):
  • ± 0.45°C @ 15-30°C, 50% RH
• Typical measurement accuracy (humidity):
  • ± 4.5% RH @ 25°C, 30 - 70% RH
• VOC index, a dimensionless number that indicates the quality of the indoor environment.
  • Measurement range: 0 - 500
• NOx index, a dimensionless number that indicates the quality of the indoor environment.
  • Measurement range: 0 - 500
• Communication: I2C (100kbit/s, address 0x69)
• Connector: JST GHR-06V-S (6-pin, 1.25 mm pitch) – suitable connection cable
• Minimum sampling interval: 1 s (continuous mode)
• Lifetime: > 10 years with 24 hours continuous operation
• Fan sound emission level (@ 0.2 m): 24 dB(A)
• Maximum operating temperature range: -10°C to 60°C
• Maximum operating humidity range: 0 to 90 (non-condensing) % RH
• Weight: 36.4g
• Dimensions: 52.3x43.3x22.3mm

Scope of Delivery:

• 1pc Sensirion SEN55-SDN-T Optical air quality sensor

Note:

• This product is not a standalone functional unit and may require professional installation.
• Product images are for illustrative purposes only and may sometimes differ from the actual appearance of the item. However, this does not change their basic properties.