Winsen MQ-8 Hydrogen Sensor is an original and brand new H2 Detection Sensor. With a long lifespan and low price, for detecting hydrogen, especially city gas.

The sensitive material of the MQ-8 gas sensor is SnO2, which with lower conductivity in clean air. When hydrogen gas exists, the sensor’s conductivity gets higher along with the gas concentration rising. Users can convert the change of conductivity to correspond output signal of gas concentration through a simple circuit.
MQ-8 gas sensor has a high sensitivity to hydrogen gas, also has anti-interference to other gases. This sensor can detect hydrogen, especially city gas. It is a kind of low-cost sensor for kinds of applications.

Features:

1. Responsive to Hydrogen (H2) gas
2. Compatible with 5V
3. Cost-efficient

Package Includes:

1 x Winsen MQ-8 Hydrogen Sensor

As an upgraded version of this new generation, the Industrial Grade Analog ORP Sensor Meter PRO ORP probe employs a platinum indicator electrode and silver-silver chloride reference electrode, which makes it available for 24-hour online ORP monitoring and greatly enhances product durability. The new signal converter adds a more stable voltage reference so that the sensor readings would be no longer affected by supply voltage fluctuations. Besides, there are screws, copper columns, and waterproof connectors included in the accessory packet to help you conveniently build up an ORP monitoring system.

ORP(Oxidation-Reduction Potential) is a measure of the ability of oxidation and reduction of an aqueous solution, which is the relative degree of oxidizing or reduction. The unit is mV. If the oxidation-reduction potential is high then chemical oxidation is strong, while if the potential is lower then oxidation is weaker. The positive potential means that solution shows a certain degree of oxidation, while the negative potential means that solution shows a certain degree of reduction. ORP is an important index of water quality detection, although it can not separate water quality independently, it can be combined with other water quality indexes to reflect the ecological environment better.

Features:

1. More  durable
2. 24-hour online ORP monitoring
3. The new signal converter adds a more stable voltage

Package Includes:

1 x DFRobot Gravity Industrial Grade Analog ORP Sensor Meter PRO

Thermopiles are mainly used for contactless temperature or non-dispersive infrared measurement in many applications. Their function is to transfer the heat radiation emitted from the objects or other infrared sources into a voltage output.

Features:

1. Very High Signal
2. Accurate Reference Sensor
3. 4.26 μm Narrow Band Pass
4. Small TO-18 package

Specifications:

1. Voltage Response: depends on the light source
2. Temperature Coefficient of Voltage Response: -0.45 ± 0.08 %/K
3. Noise Equivalent Voltage: 130
4. Rise Time: 22 ± 5
5. Ambient Temperature Sensor: Ni-RTD
6. Ambient Temperature Sensor Resistance: 1000 ± 4

Package Includes:

1 x Thermopile Sensor, Infrared, TO-18, CO2 Gas Detection

AOX3000 is an industrial-grade three-electrode lead-free oxygen sensor. The sensor adopts the principle of the fuel cell, does not contain a lead block inside, and complies with RoHS standards. The design life of AOX3000 is more than 5 years, and the life will not be affected by chemical reaction consumption. The product has a compact structure, small size, fast response, and strong anti-interference ability.

Application Range

AOX3000 lead-free oxygen sensor is mainly used to measure the oxygen concentration in the environment, widely used in coal mines, steel, petrochemical, medical, and other fields, and can be configured in gas detectors, portable safety instruments, oxygen alarms, and gas analyzers and other equipment.

Features:

1. Small size, light weight
2. Life time more than 5 years
3. Environmentally friendly, lead-free design
4. Fast response, less than 15 seconds

Package Includes:

1 x Lead-free oxygen sensor AOX3000

The LPM2610 is a pre-calibrated module for LP gas alarms which is precisely calibrated in Figaro’s humidity and temperature-controlled facility. The module uses TGS2610-D00 which incorporates a filter to eliminate the influence of interference gases such as alcohol, resulting in highly selective response to LP gas. The most important process in manufacturing reliable residential gas alarms is adjusting the alarm point. Calibration is a complicated and time-consuming process that also requires a substantial investment in calibration equipment. By
eliminating the costly calibration process, this module enables users to easily and simply manufacture residential LP gas alarms. Figaro has taken the complexity out of designing a gas detector circuit by providing users with a temperature compensation circuit that combines a built-in thermistor and individually adjusted load resistor together with Figaro’s low-power LP gas sensor.

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

Features:

1. Factory calibrated * Residential LP gas alarm
2. Temperature compensation circuit
3.  Interferent-resistant sensor TGS2610
4.  Compact size
5.  Meets RoHS regulations

Package Includes:

1 x Figaro LPM2610-D09 Butane and Propane Gas Sensor Module

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