Gravity - NO2 nitrogen dioxide sensor - I2C / UART - factory calibrated - DFRobot SEN0471

Index: DFR-20999 EAN: 5904422383350
A sensor from DFRobot that detects the concentration of NO2 nitrogen dioxide. The module has a factory calibrated probe, which enables precise measurements in a short time. It supports three interfaces: analog, I2C and UART. It has as many as 32 I2C addresses to choose from. The detection range is from 0 ppm to 20 ppm. The module has strong anti-interference properties, has very good sensitivity and high measurement stability.
€227.63
€185.07 tax excl.
Waiting time 4-6 weeks
Only on request
30-day returns
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Manufacturer: DFRobot

Product description: Gravity - NO2 nitrogen dioxide sensor - I2C / UART - factory calibrated - DFRobot SEN0471

sensor from DFRobot that detects the concentration of NO2 nitrogen dioxide. The module has a factory calibrated probe, which enables precise measurements in a short time. It supports three interfaces: analog, I2C and UART. It has as many as 32 I2C addresses to choose from. The detection range is from 0 ppm to 20 ppm. The module has strong anti-interference properties, very good sensitivity and high measurement stability.

Contents of the kit

  • NO2 nitrogen dioxide sensor - adapter board
  • NO2 sensor probe
  • Gravity 4-pin connection cable
Gravity - czujnik dwutlenku azotu.

Gravity - nitrogen dioxide sensor.

Product compatible with Arduino, ESP32, Raspberry Pi

The manufacturer has prepared a detailed user guide, which includes, among other things, 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, which enable the detection of the most common gases. Among them we can find 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.

Nitrogen dioxide in the air

Excessive concentrations of nitrogen dioxide in the inhaled air causes eye irritation, coughing and numerous respiratory ailments. It poses a serious threat to people who suffer from asthma or other lung ailments.

Nitrogen dioxide applications

  • Industrial detection of nitrogen dioxide
  • Underground nitrogen dioxide detection
  • Environmental protection in its broadest sense
  • Smart agriculture

Technical specification of the sensor

  • Detected gas: nitrogen dioxide NO2
  • Compatibility: Arduino, ESP32, Raspberry Pi
  • Detection range: from 0 ppm to 20 ppm
  • 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

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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