Product description: Gravity - O3 ozone sensor - I2C / UART - factory calibrated - DFRobot SEN0472
An advanced sensor from DFRobot, it allows you to measure the concentration of ozone O3 in your environment. It is compatible with a wide range of microcontrollers, including Arduino, Raspberry Pi or ESP32. The module has a factory calibrated probe that allows for fast and precise measurement. It supports three output interfaces: analog, I2C and UART. The ozone detection range is from 0 ppm to 20 ppm. In addition, the module has strong anti-interference properties, has very good sensitivity and high measurement stability.
Contents of the set
- O3 ozone sensor - adapter board
- Sensor probe O3
- Gravity 4-pin connection cable
Gravity - sensor for detecting ozone in the environment.
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.
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 consisting of up to 12 sensors that have been factory calibrated. These modules enable the detection of the most common gases in the environment. Among them we can find sensors such as CO, O2, NH3, H2S, NO2, HCL, H2, PH3, SO2, O3, CL2, HF.
In addition, the sensors in this series operate in the same way and have the same data format, so they can work in parallel.
How ozone affects life on earth
We often wonder if ozone is a variety of oxygen? How is ozone formed? Does ozone kill insects and bugs? We hurry with the answer.
Ozone is a triatomic variety of oxygen. It is a strong oxidizing agent and reacts very easily with chemicals. It has useful properties (e.g. when it absorbs ultraviolet radiation or disinfects water) and toxic properties when it is too close to the Earth - it destroys vegetation, damages lung tissues. It is most often found in smog.
Ozone sensor
- Industrial ozone detection
- Environmental protection in general
- Intelligent agriculture
Technical specification of sensor
- Detectable gas: ozone O3
- 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
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 |
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