Gravity - H2 Hydrogen Sensor - I2C / UART - factory calibrated - DFRobot SEN0473

Index: DFR-20997 EAN: 6959420921638
A sensor manufactured by DFRobot to measure hydrogen H2 concentration. The module comes with a factory calibrated probe that allows you to make 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 1000 ppm. The module has strong anti-interference properties, has very good sensitivity and high measurement stability.
Gravity - H2 Hydrogen Sensor - I2C / UART - factory calibrated - DFRobot SEN0473
€223.90
€182.03 tax excl.
Waiting time: 4-6 weeks
Only on request
PayPal payment
Manufacturer: DFRobot
Compatibility: Arduino Raspberry Pi

Product description: Gravity - H2 hydrogen sensor - I2C / UART - factory calibrated - DFRobot SEN0473

A sensor manufactured by DFRobot that allows you to measure the hydrogen H2 concentration. The module has a factory calibrated probe, which allows you to make 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 1000 ppm. The module has strong anti-interference properties, very good sensitivity and high measurement stability.

Contents of the kit

  • H2 hydrogen sensor adapter board
  • H2 sensor probe
  • Gravity 4-pin connection cable
Gravity - czujnik wodoru.

Gravity - a sensor for hydrogen detection.

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

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.

Hydrogen a flammable gas

Hydrogen is the simplest chemical element and a flammable gas, which ignites on contact with air (due to the presence of oxygen). It is very important to detect its presence quickly enough, for example, if a hydrogen tank is leaking.

Hydrogen sensor application

  • Industrial hydrogen detection
  • Tank survey
  • Broadly understood environmental protection
  • Smart agriculture

Technical specification of the sensor

  • Detectable gas: hydrogen H2
  • Compatibility: Arduino, ESP32, Raspberry Pi
  • Detection range: from 0 ppm to 1000 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
Package width 13.5 cm
Package height 4.5 cm
Package depth 4.5 cm
Package weight 0.078 kg

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