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7Semi SGP40 VOC Air Quality Sensor Probe with I2C Interface
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The 7Semi SGP40 VOC Air Quality Sensor Probe with I2C Interface is a compact and reliable air quality monitoring module designed to detect volatile organic compounds (VOCs) and harmful indoor gases with high accuracy. Built with an easy-to-use I2C interface, this VOC air quality sensor is ideal for smart home systems, HVAC monitoring, IoT projects, and environmental sensing applications.
The sensor delivers fast and stable VOC index readings, helping users maintain healthier indoor air conditions in homes, offices, classrooms, and industrial environments. Its small form factor and low-power operation make it a perfect choice for embedded electronics and air quality monitoring projects using microcontrollers and development boards.

| Specification | Details |
|---|---|
| Brand | 7Semi |
| Sensor | SGP40 |
| Interface | I2C |
| Sensor Type | VOC Index |
| Measurement Range | 0 – 1000 ppm |
| Operating Voltage | 3.3V |
| Target Gas | Air Quality |
This product comes with a 6-month manufacturer warranty from the date of purchase, covering manufacturing defects only.
The product shows signs of physical damage, mishandling, exposure to water/moisture, fire, natural calamities, unauthorized repairs, improper storage near heat or direct sunlight, or alteration in any way.