The Gravity IIC Ozone Sensor measures ozone (O₃) concentration from 0 to 10 ppm with 10 ppb resolution using an electrochemical sensing element. Factory-calibrated for accurate readings out of the box, it connects via I2C through DFRobot's Gravity 4-pin interface.

Compatible with Arduino, ESP32, Raspberry Pi, and other 3.3–5.5V microcontrollers, this sensor is suited for air quality monitoring, disinfection equipment, and environmental sensing applications. The electrochemical cell has a working life of over 2 years in air.

Key Features

• Electrochemical Ozone Sensing – Factory-calibrated for accurate O₃ measurement
• 0–10 ppm Range – With 10 ppb (0.01 ppm) resolution
• I2C Output – Simple digital interface via Gravity 4-pin connector
• Wide Voltage Input – 3.3–5.5V DC compatible
• 2+ Year Lifespan – Electrochemical cell rated for over 2 years in air

Specifications

• Detection Gas – Ozone (O₃)
• Measuring Range – 0–10 ppm
• Resolution – 0.01 ppm (10 ppb)
• Operating Voltage – 3.3–5.5V DC
• Interface – I2C (Gravity 4-pin)
• Warm-Up Time – ≤3 minutes
• Response Time – ≤90 seconds
• Recovery Time – ≤90 seconds
• Operating Temperature – −20 to 50°C
• Operating Humidity – 15–95% RH (non-condensing)
• Dimensions – 37 × 27 mm

Ideal For

• Air quality monitoring stations
• Disinfection equipment monitoring
• Smart home environmental sensing
• Portable ozone detection instruments

Package Contents

• 1× Gravity IIC Ozone Sensor (0–10 ppm)

Resources

• DFRobot Wiki