ME3-SO2 electrochemical sensor detects gas concentration by measuring current based on the electrochemical principle, which utilizes the electrochemical oxidation process of target gas on the working electrode inside the electrolytic cell, the current produced in the electrochemical reaction of the target gas is in direct proportion with its concentration while following Faraday law, then the concentration of the gas could be got by measuring the value of current.

Applications:

Portable and fixed gas detector, various gas detection equipment, and situation.

Features:

1. High sensitivity & resolution
2. Low power consumption
3. UART and analog voltage output
4. Good stability and excellent anti-interference ability

Package Includes:

1 x Winsen ZE03-SO2 GAS Sensor Module

TGS2610-C00 is a semiconductor type gas sensor which combines very high sensitivity to LP gas with low power consumption and long life. Due to miniaturization of its sensing chip, TGS2610-C00 requires a heater current of
only 56 mA and the device is housed in a standard TO-5 package. TGS2610-C00 possesses small size and quick gas response, making it suitable for gas leakage checkers. The TGS2610-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 TGS2610-C00 LP Gas Sensor

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

Figaro’s TGS5141 is a battery-operable electrochemical sensor that uses a unique electrolyte that eliminates the need for a water reservoir. By eliminating the water reservoir used in TGS5042, the comparative size of TGS5141 is reduced to just 10% of TGS5042. With its ultra-compact size, this sensor is the ideal choice for size-oriented applications such as portable CO detectors, small residential CO detectors, and multi-sensor fire detectors. OEM customers will find individual sensor data printed on each sensor in barcode form, enabling users to skip the costly gas calibration process and allowing for individual sensor tracking.

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

Applications:

Residential and commercial CO detectors
Fire detection

Features:

1. Ultra-compact
2. Battery operable
3. High repeatability/selectivity to CO
4. Linear relationship between CO gas
5. concentration and sensor output

Package Includes:

1 x Figaro TGS5141-P00 Carbon Monoxide Sensor home air quality monitor

Healthy living starts with healthy air! As the most basic part of life, air is attracting more and more attention these years, for example, PM2.5, smog, etc. Keeping an eye on the quality of the air we breathe is becoming quite important.

This Air Quality Monitor introduced by DFRobot provides you with the measurements of PM10, PM2.5, and PM1.0 as well as temperature and humidity. It works well with devices like Arduino, STM32.Based on the principle of laser scattering, this sensor continuously collects and calculates the number of suspended particles of various sizes in the air per unit volume, which is particle concentration distribution, and then converts to mass concentration. At the same time, a temperature & humidity integrated sensing chip is embedded in the module for accurately detecting the temperature and humidity.

In a word, this air quality sensor combines the particle concentration value, temperature, and humidity monitoring functions onto one module, and outputs the relevant data frames via UART. It can be embedded in various instruments and equipment related to air quality monitoring and environmental air improvement to provide timely and accurate environmental parameters.

Features:

1. Laser scattering principle, accurate measurement
2. Zero false alarm rate
3. Real-time response and support continuous acquisition
4. Minimum recognizable particle size 0.3μm
5. Brand-new patented structure, six-sided all-around shielding, stronger anti-interference performance
6. The direction of the air inlet and outlet is optional, and wider application ranges
7. Real-time output temperature and humidity data

Package Includes:

1 x DFRobot Air Quality Monitor (PM 2.5, Formaldehyde, Temperature & Humidity Sensor)

This is a sensor that detects hydrogen fluoride 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 fluoride in the environment. Can be widely used in the detection of hydrogen fluoride 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 pie. The easy-to-use Gravity interface, coupled with our sample code, can quickly build a hydrogen fluoride concentration detector.DFRobot has introduced 12 gas detection sensors in this series, CO, 02, 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.

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.

Specifications:

1. Detection Gas: Hydrogen fluoride (HF)
2. Detection range: 0~10ppm
3. Working Voltage: 3.3～5.5V DC
4. Working Current: ＜5mA
5. Output Signal: I2C, UART (0~3V), analog voltage
6. Working Temperature: -20～50℃
7. Working Humidity: 15～90%RH (non-condensing)
8. Storage Temperature: -20～50℃
9. Storage Humidity: 15～90%RH (non-condensing)
10. Lifespan: >2 years (in the air)
11. Adapter Plate Size: 37*32mm
12. Compatibility: Arduino, ESP32, Raspberry pi

Package Includes:

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