Gravity - O2 sensor - I2C / UART - factory calibrated - DFRobot SEN0465

Index: DFR-20981 EAN: 5904422383299
A sensor that allows to test the oxygen content in the air. Factory calibrated, it supports three output modes: analog, I2C and UART. It has up to 32 I2C addresses to choose from. The detection range is from 0% to 25% by volume. The module has strong anti-interference properties, has very good sensitivity and high measurement stability.
Gravity - O2 sensor - I2C / UART - factory calibrated - DFRobot SEN0465
€95.26
€77.45 tax excl.
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Manufacturer: DFRobot

Product description: Gravity - O2 oxygen sensor - I2C / UART - factory calibrated - DFRobot SEN0465

Sensor for measuring the content of Oxygen in air. Factory calibrated, it supports three output modes: analog, I2C and UART. It has up to 32 I2C addresses to choose from. The detection range is from 0% to 25% by volume. The module has strong anti-interference properties, has very good sensitivity and high measurement stability.

Contents of the kit

  • O2 oxygen sensor - adapter board
  • O2 sensor probe
  • Gravity 4-pin connection cable

Gravity - oxygen sensor in the air.

Product compatible with Arduino, ESP32, Raspberry Pi

The manufacturer has prepared a detailed user's guide, which includes connection instructions and sample program code.

Czujniki posiadają ten sam format danych dzięki czemu mogą współpracować równolegle.

The sensors have the same data format so they can work in parallel.

A series of pre-calibrated sensors from DFRobot

The manufacturer DFRobot has developed a series of sensors that have been factory calibrated. The series consists of up to 12 modules that can detect the most common gases. These include CO, O2, NH3, H2S, NO2, HCL, H2, PH3, SO2, O3, CL2, HF sensors.

In addition, the sensors in this series operate in the same way and have the same data format, so they can work in parallel.

Suggested application

  • Air quality monitoring device
  • Oxygen sensor in exhaust gases
  • Air analysis in mines
  • Broadly understood environmental protection
  • Intelligent agriculture

Technical specification of the sensor

  • Detected gas: oxygen O2
  • Compatibility: Arduino, ESP32, Raspberry Pi
  • Detection range: from 0% to 25% by volume
  • Supply voltage: 3.3 V to 5.5 V DC
  • Current consumption: <5 mA
  • Output signal: analog
  • Communication interface: UART / I2C
  • Operating temperature range: -20°C to 50°C
  • Lifetime: > 2 years
  • Sensor adapter board dimensions: 37 x 32 mm
Sonda czujnika została fabrycznie skalibrowana co pozwala na szybkie i precyzyjne dokonywanie pomiarów.

The sensor probe has been factory calibrated which allows fast and precise measurements.

Comparative table of the calibrated sensor series from DFRobot

DFR-20981 DFR-20982 DFR-21003 DFR-21002
Gas type O2 oxygen CO gas H2S hydrogen sulphide CL2 chlorine
Detection range 0% to 25% vol. 0 ppm to 1000 ppm 0 ppm to 100 ppm 0 ppm to 20 ppm
Resolution 0.1% vol. 1 ppm 1 ppm 0,1 ppm
Output voltage range V0 0 V to 1.5 V 0.6 V to 3 V 0.6 V to 3 V 0 V to 2 V
Vout1 1 V @ 10% vol. 0.9 V @ 200 ppm 1.5 V @ 50 ppm 1.2 V @ 10 ppm
Response time (T90) ≤ 15 s ≤ 30 s ≤ 30 s ≤ 60 s
DFR-21001 DFR-21000 DFR-20999 DFR-20998
Gas type NH3 ammonia SO2 sulphur dioxide NO2 nitrogen dioxide O3 ozone
Detection range 0 ppm to 100 ppm 0 ppm to 20 ppm 0 ppm to 20 ppm 0 ppm to 10 ppm
Resolution 1 ppm 0,1 ppm 0,1 ppm 0,1 ppm
Output voltage range V0 0.6 V to 3 V 0.6 V to 3 V 0 V to 2 V 0 V to 2 V
Vout1 1.4 V @ 50 ppm 0.9 V @ 10 ppm 1,3 V @ 10 ppm 0.7 V @ 5 ppm
Response time (T90) ≤ 150 s ≤ 30 s ≤ 30 s ≤ 120 s
DFR-20997 DFR-20996 DFR-21010 DFR-20995
Gas type H2 hydrogen HCL hydrogen chloride HF hydrogen fluoride PH3 hydrogen phosphide
Detection range 0 ppm to 1000 ppm 0 ppm to 10 ppm 0 ppm to 10 ppm 0 ppm to 1000 ppm
Resolution 1 ppm 0,1 ppm 0,1 ppm 0,1 ppm
Output voltage range V0 0.6 V to 3 V 0 V to 2 V 0 V to 2 V 0.6 V to 3 V
Vout1 1.3 V @ 500 ppm 0.7 V @ 5 ppm 0,7 V @ 5 ppm 0.7 V @ 50 ppm
Response time (T90) ≤ 120 s ≤ 60 s ≤ 60 s ≤ 30 s
Sensor - type air quality

Same-day shipping

  • Crediting the payment for the order on our account on a business day before 10:00 AM means sending the goods on the same day.
  • All packages are being delivered by GLS Group courier and covered with insurance up to 1200 EUR.
  • You will receive a link to track your package and monitor the progress of delivery as soon as it is shipped.

Terms of delivery 

GLS - zone 1

Austria, Belgium, Croatia, The Czech Republic, Denmark, Germany, Netherlands, Poland, Slovakia 

  • Delivery time: 2-4 days
  • Delivery cost: from 4.18 EUR
  • Insurance: 1200 EUR
GLS - zone 2

Bulgaria, Estonia, France, Hungary, Italy, Latvia, Lithuania, Luxembourg, Portugal, Romania, San Marino, Slovenia

  • Delivery time: 2-5 days
  • Delivery cost: from 5.35 EUR
  • Insurance: 1200 EUR
GLS - zone 3

Finland, Greece, Ireland, Spain, Sweden 

  • Delivery time: 2-7 days
  • Delivery cost: from 7.67 EUR
  • Insurance: 1200 EUR

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