7Semi SHT40 SGP40 VOC Air Quality Sensor Breakout Qwiic Compatible

The 7Semi SHT40 + SGP40 Environmental & VOC Air Quality Sensor Breakout combines temperature, relative humidity, and VOC-based indoor air-quality sensing on a single compact board. The SHT40 provides digital temperature and humidity measurements, while the SGP40 uses Sensirion’s MOx gas-sensing technology to detect changes in VOC-related air quality. Temperature and humidity data can also be supplied to the SGP40 for humidity compensation, helping maintain more consistent VOC sensing as environmental conditions change. The SGP40 raw signal can be processed using Sensirion’s VOC Algorithm to generate an easy-to-use VOC Index from 0 to 500. The breakout is well suited for indoor air-quality monitors, HVAC systems, smart-home devices, environmental monitoring, and IoT applications.

Note-: Optional power LED: short the solder bridge to enable the power LED

Features

• Combines temperature, humidity, and VOC-based air-quality sensing on one board.
• Uses the SHT40 for digital temperature and relative-humidity measurements.
• Integrates the SGP40 MOx gas sensor for VOC-related indoor air-quality monitoring.
• Supports VOC Index output from 0 to 500 using Sensirion’s VOC Algorithm.
• Supports temperature and humidity compensation for the SGP40 VOC signal.
• Provides a common I²C interface for easy integration with microcontrollers and embedded systems.