Gravity - ozone sensor I2C - electrochemical - DFRobot SEN0321

Index: DFR-16575 EAN: 6959420916641

Electrochemical ozone sensor for accurate O3 concentration measurement in the environment. Its measuring range is from 0 ppm to 10 ppm. It communicates via the I2C interface and has a built-in Gravity connector for easy connection to the main module. The sensor is powered from 3.3 V to 5.5 V.

Gravity - ozone sensor I2C - electrochemical - DFRobot SEN0321
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Manufacturer: DFRobot
Compatibility: Arduino Raspberry Pi

Description: Gravity - I2C ozone sensor - electrochemical - DFRobot SEN0321.

Electrochemical ozone sensor for accurateO3 concentration measurement inthe environment. Compatible with ArduinoandRaspberryPi, the modulecan be used in portable measuring stations and disinfection rooms. Its measuring range is from 0ppm to 10 ppm.It communicates through the I2C interface andhasa built-in Gravity connector for easy connection to the main module. The sensor is poweredfrom 3.3 V to 5.5 V.The sensor has a service life of 2 years.

Przykład połączenia z Arduino

Example of connection with Arduino.

Ozone is mainly formed by the emission of photochemical reactions of NOx, VOC and other pollutants. The acceptable daily ozone concentration standard for humans is 260μg / m3.Too high a concentration may causefatigue, coughing, chest compression, chest pain, wrinkles, nausea and headaches, heart rate increase, memory loss, visual impairment and other symptoms.

Czujnik ozonu I2C wraz z przewodem GravityI2C ozone sensor, a compatible cable is also included.


  • Do not connect or disconnect sensors on the module.
  • It is forbidden to interfere with the module electronics.
  • Avoid contact with organic solvents (silicones and other adhesives), pharmaceuticals, oils and high concentrations of gases.
  • The module must not be completely immersed in resin and must not be submerged in an anaerobic environment.
  • The module must not be used for a long time in an environment containing corrosive gas.
  • The unit should be protected against excessive shocks and vibrations.
  • The "warm-up" time of the module after the first start-up is 24-48 hours.
  • Do not tear the white membrane from the sensor.
  • The module should not be installed in a highly convective environment.
  • Do not place the module in high concentration organic gas for a long time.

Main functions of the ozone sensor

  • Measurement of ozone intensity
  • Built-in Gravity interface
  • Digital output

Ozone sensor specifications

  • Supply voltage: 3.3 V to 5.5 V
  • Interface: Gravity
  • Communication: I2C
  • Measuring range: 0 ppm to 10 ppm
  • Measurement resolution: 0.01 ppm (10 ppb)
  • Warm-up time: up to 3 minutes
  • Response time: up to 90 seconds
  • Recovery time: up to 90 seconds
  • Operating temperature: -20°C to 50°C
  • Operating humidity: 15% to 95% RH
  • Storage temperature: -20°C to 50°C
  • Lifetime: up to 2 years
  • Dimensions: 37 x 27 mm
  • Weight: 22 g

The set includes

  • Ozone sensor
  • Gravity cable
  • Nylon distance M3x10 - 4 pcs.
  • Mounting screws M3x5 - 8 pcs.

Akcesoria dołączone do zestawuAccessories included in the set.

Package width 5.5 cm
Package height 2.5 cm
Package depth 6 cm
Package weight 0.022 kg

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Product reviews

Gravity - ozone sensor I2C - electrochemical - DFRobot SEN0321


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Gunnar 06.11.2023 Confirmed purchase Translated review
reliable, fast - thank you very much!
Paweł 10.02.2023 Confirmed purchase Translated review
Everything is great, works as it should be. Nice and professional service. I recommend
Agata 11.01.2023 Confirmed purchase Translated review
5/5 super
Bartosz K. 22.02.2022 Confirmed purchase Translated review
Express shipping.

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