DFRobot Gravity I2C Oxygen Sensor – 0–25%

The DFRobot Gravity I2C Oxygen Sensor is an electrochemical sensor designed for accurate ambient oxygen concentration measurement. It supports I2C digital output and operates within a 3.3–5.5V DC range, making it compatible with Arduino, ESP32, and Raspberry Pi platforms. The sensor provides stable performance with a 0–25% Vol measurement range, 0.15% Vol resolution, and ?15 s response time. Designed for reliability, it offers high anti-interference capability and over 2 years service life in air. Ideal for air quality monitoring systems, portable detection devices, and industrial safety applications. Features - Electrochemical oxygen sensing technology - I2C digital output interface - 0–25% Vol effective measurement range - 0.15% Vol resolution - ?15 s response time - High anti-interference performance - 3.3–5.5V DC operating voltage - Stability 2 years in air - Gravity interface for plug-and-play integration Specifications - Detection Gas: Oxygen - Operating Voltage: 3.3–5.5V DC - Output Signal: I2C Digital Output - Measurement Range: 0–25% Vol - Maximum Measurement Limit: 30% Vol - Resolution: 0.15% Vol - Sensitivity: (0.10 ± 0.05) mA in Air - Stability: 2 Years in Air - Dimensions: 37 × 27 × 24.5 mm - Weight: 37 g - Compatibility: Arduino, ESP32, Raspberry Pi Links - DFRobot Gravity I2C Oxygen Sensor Datasheet - Product wiki - More Documents Tutorials - DFRobot_OxygenSensor Library - DFRobot_OxygenSensor Tutorial