DFROBOT (SEN0322) Electrochemical Oxygen/O2 Sensor, Cable, Post, Screws, DFRduino UNO R3, ESP32, Raspberry Pi Boards

SEN0322 is a Gravity I2C oxygen sensor is based on electrochemical principles and it can measure the ambient O2 concentration accurately and conveniently. With high anti-interference ability, high stability and high sensitivity this Arduino-compatible oxygen sensor can be widely applied to fields like portable device, air quality monitoring device and industries, mines, warehouses and other spaces where air is not easy to circulate. This compact oxygen sensor supports I2C output, it can be calibrated in the air, can accurately measure the oxygen concentration in the environment. It is compatible with many mainboards like Arduino Uno, esp32, Raspberry Pi and so on. Its effective range is 0 to 25%Vol and resolution can reach to 0.15%Vol.

High sensitivity and I2C output interface

Compatible with both 3.3V and 5V micro-controllers

Polarity protection

Measurement range: 0 to 25%Vol and sensitivity: (0.10±0.05)mA (in the air)

Stability: <lt/>2% (every month), lifetime is <gt/> 2 years (in the air)

Repeatability: <lt/>2%, response time: ≤15 seconds

30%Vol maximum measurement limit, 0.15%Vol resolution

Pressure range: standard atmospheric pressure ±10%

Manual calibration method and electrochemical working principle

Operating pressure range of 101KPa±10%