Features:

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This is a sensor that detects hydrogen concentration and supports three output modes: analog, I2C, and UART. The probe has been calibrated at the factory, which can quickly and accurately measure the concentration of hydrogen in the environment. Can be widely used in the detection of hydrogen in industrial and environmental protection fields.The probe adopts the electrochemical principle, has the characteristics of strong anti-interference ability, high stability, high sensitivity, etc., and the service life is as long as two years.

The sensor has 32 modifiable I2C addresses, an integrated temperature compensation algorithm, and a threshold alarm function, It has good compatibility with mainstream main control devices such as Arduino ESP32, and RASPBERRY PI. The easy-to-use Gravity interface, coupled with our sample code, can quickly build a hydrogen concentration detector.

DFRobot has introduced 12 gas detection sensors in this series, CO, O2, NH3, H2S, NO2, HCL, H2, PH3, SO2, O3, CL2, HF, which are used in exactly the same way and data format, so you can combine them according to your needs.

Application:

Connection Diagram

Features:

1. Factory calibrated, accurate measurement
2. High sensitivity, low power consumption
3. Excellent stability and anti-interference
4. Three output modes: I2C, UART and analog
5. Long service life(2 years)
6. Compatible with 3.3~5.5V main controllers
7. 32 modifiable I2C addresses
8. Reverse connection protection
9. Temperature compensation
10. Threshold alarm
11. It use I2C, UART and analog communication protocol to make smooth commutation between sensor and micro-controller.

Package Includes:

1 x DFRobot Gravity H2 Sensor (Calibrated) – I2C, UART and analog

TGS2611-C00 is a semiconductor-type gas sensor that combines very high sensitivity to methane gas with low power consumption and long life. Due to the miniaturization of its sensing chip, TGS2611-C00 requires a heater current of only 56mA, and the device is housed in a standard TO-5 package. TGS2611-C00 possesses a small size and quick gas response, making it suitable for gas leakage checkers. The TGS2611-C00 is able to satisfy the requirements of performance standards such as UL1484 and EN50194.

Note: For more technical details go through Datasheet in the attachment section

Features:

1. Quick response
2. Low power consumption
3. Long life and low cost
4.  Uses simple electrical circuit

Package Includes:

1 x Figaro TGS2611-C00 Methane Sensor

The TGS6812-D00 catalytic-type gas sensor can detect levels of hydrogen up to 100%LEL. This sensor features high accuracy, good durability and stability, quick response, and linear output. This sensor can detect not only hydrogen but also methane and LP gas, thus making it an excellent solution for monitoring gas leakage from stationary fuel cell systems which transform combustible gases into hydrogen. As the sensor possesses a proprietary filter material inside its sensor cap, its cross-sensitivity to organic vapors is small. In addition, TGS6812-D00 is durable against silicone compounds in harsh environments.

N0te: For more technical details go through Datasheet in the Attachment sections

Applications:
Hydrogen and combustible gas leak
detectors for fuel cells

Features:

1. Linear output
2.  Long life
3.  Small sensitivity to organic vapors
4.  Sensitive to hydrogen, methane, and
   LP gas

Package Includes:

1 x Figaro TGS6812-D00 Hydrogen/Methane/LPG Sensor

The Natural gas module is a battery-operated detection device designed for the detection of natural gas (methane) in concentrations below 100% LEL (4.4% CH4 in the air). The sensor is not suitable for measuring propane and butane. The sensor is equipped with a test button as well as an audible alarm option realized with an embedded buzzer.

The heart of the device is an MP-7227 MEMS pellistor sensor which allows for low-power operation on standard AA-type batteries. The module is equipped with visual (LED) and audible (buzzer) alarms to inform of potential gas leakage as well as transmit data related to the actual state of the module and concentration of gas if the module is connected to an external receiver working with serial RS232 standard

For Complete technical details go through the datasheet in the attachments

Package Includes:

1 x Amphenol SGX Sensortech Gas Sensor Module, Methane

AOX4000 is an oxygen sensor that measures the partial pressure of oxygen in the environment based on the principle of fluorescence quenching. The sensor has a built-in air pressure sensor, which can directly output the values of ambient air pressure, oxygen partial pressure, and oxygen concentration, which is convenient for users to read data intuitively. Compared with electrochemical sensors, AOX4000 has longer life. Due to the temperature compensation function, no additional compensation system is required. AOX4000 is very stable and environmentally friendly, does not contain lead or any other harmful substances.

Features:

1. High precision, temperature compensation
2. No Drift, Low Power Consumption
3. Long life, fast response, fully calibrated
4. Lead-free, RoHS compliant
5. Digital output oxygen partial pressure, atmospheric pressure

Package Includes:

1 x Fluorescent oxygen sensor AOX4000