TVOC gas sensor

The AGS02MA is a compact MOX-based TVOC sensor module designed for cost-effective air quality monitoring. It integrates a miniature ADC that directly converts gas resistance into digital I²C output, reporting values in parts per billion (ppb). Though it does not include onboard filtering or advanced signal processing, it provides fast and simple detection of volatile organic compounds in the environment. With its small footprint and low power consumption.

Features

• Real-time detection of Total Volatile Organic Compounds (TVOCs)

• Compact and lightweight design for easy integration

• Digital output via I²C and UART for flexible connectivity

• Low power consumption suitable for battery-powered applications

Specifications

• Operating Voltage: 3.3~5.5 VDC
• Operating Current: 28 ±5mA
• Sampling Period: ≥2s
• Preheating Time: ≥120s
• Operating Temperature: 0～50℃
• Operating Humidity: 0~95%RH
• Life Span: ＞5 years (@25 ℃, clean air)
• Output Mode: I2C peripheral mode (≤30 kHz)
• Semiconductor sensor
• Measuring Range: 0～99999 ppb
• Standard Test Gas: Ethanol

Applications

• Basic indoor air quality detection

• DIY and hobby electronics projects

• Smart home integration for air monitoring

• Low-cost IoT environmental sensing

• Educational and prototyping tools