SGP40 VOC Sensor Breakout for Indoor Air Quality 2.54mm Pitch

The 7Semi SGP40 VOC Sensor Breakout is a compact indoor air-quality sensing module based on the Sensirion SGP40 gas sensor. It detects volatile organic compounds (VOCs) and outputs a digital VOC Index via I²C. With a 2.54mm header for easy prototyping, this breakout is ideal for smart-home systems, ventilation control, air purifiers, HVAC automation, and IoT environmental monitoring applications.

Technical Specifications:

• Sensor IC: Sensirion SGP40 (MOX-based VOC sensor)
  
• Measurement Output: VOC Index (0–500) and raw VOC signal
  
• VOC Detection Range: Up to ~1000 ppm (ethanol-equivalent VOC level)
  
• Response Time: <10 seconds (typical)
  
• Interface: I²C
  
• Supply Voltage: 3.3V
  
• Current Consumption: ~2.6 mA at 3.3V
  
• Header Pitch: 2.54mm breadboard-compatible
  
• Sensor Type: Metal-oxide gas sensor with micro-hotplate
  
• Output Type: Digital processed VOC index
  
• Logic Compatibility: 3.3V systems
  
• Module Type: Compact breakout board

Features:

• Detects a wide range of indoor VOC pollutants
  
• Digital I²C communication for easy MCU integration
  
• Provides ready-to-use VOC Index values without complex processing
  
• Compact breakout with standard 2.54mm pin header
  
• Low-power operation suitable for continuous indoor monitoring
  
• Fast response time to air-quality changes
  
• High long-term stability and robust gas-sensing performance
  
• Designed for smart-home, HVAC, and IoT systems
  
• Works with Arduino, ESP32, STM32, Raspberry Pi
  
• Suitable for portable and embedded applications

Applications:

• Indoor air-quality monitoring
  
• Air purifiers and filtration systems
  
• Smart-home and IoT environmental sensors
  
• Kitchen, office, and room VOC detection
  
• HVAC automation and air-quality control
  
• Smart-building monitoring
  
• Data logging and environmental research
  
• Portable air-quality meters
  
• Safety and ventilation systems
  
• Consumer air-quality devices