7Semi SGP41 VOC and NOx Sensor Breakout for Indoor Air Quality 2.54mm Pitch

The 7Semi SGP41 VOC and NOx Sensor Breakout is a compact indoor air-quality sensing module based on the Sensirion SGP41 gas sensor. It measures volatile organic compounds (VOCs) and oxidizing gases (NOx), providing digital air-quality indices suitable for ventilation control, purifiers, smart home devices, and IoT environmental monitoring. With a 2.54mm pitch header, it is breadboard-friendly and easy to integrate with microcontrollers using the I²C interface.

Technical Specifications:

• Sensor IC: SGP41 (metal-oxide gas sensor)
  
• Measured Parameters: VOC Index and NOx Index
  
• Interface: I²C digital communication
  
• Operating Voltage: 3.3V
  
• Power Consumption: ~3 mA (active)
  
• Sensor Package: Compact DFN package internally
  
• Header Pitch: 2.54mm (standard breadboard-compatible)
  
• Output Type: Digital gas indices (VOC-Index, NOx-Index)
  
• Logic Compatibility: 3.3V systems
  
• Sensing Technology: MOX (metal-oxide) gas detection
  
• Designed for indoor air-quality applications

Features:

• Detects a wide range of VOCs and NOx/oxidizing gases
  
• Provides ready-to-use VOC and NOx index values
  
• Digital I²C communication for simple integration
  
• Compact breakout module with standard 2.54mm header
  
• Low-power operation suitable for continuous air-quality monitoring
  
• High stability and long-term reliability of the SGP41 sensor
  
• Suitable for battery-powered and IoT devices
  
• Easy to interface with Arduino, ESP32, STM32, Raspberry Pi
  
• Fast response to changing air-quality conditions
  
• Ideal for modern indoor air-quality systems

Applications:

• Indoor air-quality monitoring
  
• Smart home and IoT environmental sensors
  
• Air purifiers and filtration systems
  
• HVAC and ventilation control
  
• Air-quality data logging and environmental research
  
• Smart-building automation
  
• Portable or wearable air-quality devices
  
• Industrial and office indoor-air safety monitoring
  
• Environmental sensing nodes for IoT networks