Gravity - CL2 chlorine sensor - I2C / UART - factory calibrated - DFRobot SEN0468

Index: DFR-21002
Sensor that detects the concentration of chlorine CL2 in the air. Manufactured by DFRobot, it is equipped with a factory calibrated probe that allows for precise measurements. The measuring range for chlorine is from 0 ppm to 10 ppm. The module supports three interfaces: analog, I2C and UART and has as many as 32 I2C addresses to choose from. It exhibits strong anti-interference properties, has very good sensitivity and high measurement stability.
Gravity - CL2 chlorine sensor - I2C / UART - factory calibrated - DFRobot SEN0468
€149.51
€121.56 tax excl.
Waiting time 4-6 weeks
Only on request
30-day returns
PayPal payment
Manufacturer: DFRobot
Compatibility: Arduino Raspberry Pi

Product description: Gravity - CL2 chlorine sensor - I2C / UART - factory calibrated - DFRobot SEN0468

A sensor that detects the concentration of CL2 chlor ine in the air. Manufactured by DFRobot, it is equipped with a factory calibrated probe that allows precise measurements. The measuring range for chlorine is from 0 ppm to 10 ppm. The module supports three interfaces: analog, I2C and UART and has as many as 32 I2C addresses to choose from. It exhibits strong anti-interference properties, has very good sensitivity and high measurement stability.

Contents of the set

  • CL2 chlorine sensor - adapter board
  • CL2 sensor probe
  • Gravity 4-pin connection cable
Gravity - czujnik chloru

Gravity - chlorine sensor.

Product compatible with Arduino, ESP32, Raspberry Pi

The manufacturer has prepared a detailed user guide, which includes, among other things, wiring 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

DFRobot has developed a series of pre-calibrated sensors that work in the same way and have the same data format, so they can work in parallel. Using several sensors simultaneously will allow to create many advanced devices - with industrial as well as amateur use. The series consists of 12 modules, which enable detection of gases such as: CO, O2, NH3, H2S, NO2, HCL, H2, PH3, SO2, O3, CL2, HF.

Application of the sensor

  • Chemical chlorine detection
  • Detection of chlorine in pharmaceutical production
  • Broadly understood environmental protection
  • Smart agriculture

Technical specification of the sensor

  • Detectable gas: chlorine CL2
  • Compatibility: Arduino, ESP32, Raspberry Pi
  • Detection range: from 0 ppm to 10 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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