The SGP40 Air Quality sensor adopts the new SGP40 digital VOC sensor chip launched by the well-known Sensirion. Based on the Sensirion’s CMOSens® technology, the SGP40 offers a complete sensor system on a single chip, a temperature-controlled micro-hotplate, and a humidity-compensated indoor air quality signal. In combination with Sensirion’s powerful VOC algorithm, the sensor signal can be directly used to evaluate indoor air quality. It features low power(2.6mA), fast response(2s), and small size. The data from the sensor can be directly used to evaluate air quality without calibration.

Integrated with an easy-to-connect Gravity interface, this Gravity SGP40 Air Quality sensor is very suitable for indoor projects that will be used for a long time, such as refitting air purifiers, kitchen hoods, etc. Besides, we provide you with C and Python libraries for use with different main controllers.

Applications:

Features:

Useful Links:

Package Includes:

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)

TGS 3870-F00 is a micro-bead type semiconductor gas sensor for the detection of both methane and carbon monoxide. Using a micro-bead gas sensing structure, both methane and carbon monoxide can be detected with a single sensor element by periodic application of two different heater voltages (high and low). Miniaturization of the gas sensing bead results in a heater power consumption of only 38mW (average).

TGS 3870-F00 has low sensitivity to alcohol vapors (a typical interference gas in the residential environment) and has high durability, making the sensor ideal for consumer market gas alarms.

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

Features:

1.  Miniature size and low power consumption
2.  High sensitivity and selectivity to both
   methane and carbon monoxide (CO)
3.  Low sensitivity to alcohol vapor
4.  Long life and low cost

Package Includes:

1 x Figaro TGS3870 Methane/Carbon Monoxide 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

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

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