Sensors

A fork-shaped soil humidity sensor with gold-plated contacts which prevent oxidation. It has a soldered terminal for easier wire connection.

Dimensions: 54mm x 22mm x 0.45mm

Potentiometers are well known all around, and the sliding potentiometer is just one of its versions.You’ve probably seen it in some music equipment, and now you have the chance to add it to your project!

• Type: linear
• Resistance: 10k
• Dimensions: 86 x 22 mm

The MQ138 sensor is specifically designed to detect various gases, with a primary focus on air quality monitoring. While its main target gas is formaldehyde (HCHO), it is also sensitive to a range of other gases, including volatile organic compounds (VOCs) such as toluene, alcohol, acetone, and hydrogen, as well as other harmful gases commonly found in the environment. It requires a short time to heat up in order to work correctly.

The breakout board provides both digital and analog output through the easyC system. Sensor readings are obtained through the easyC.

Product usage tips:

When gas is detected, the LED will start glowing. It will remain off if it doesn’t detect anything. Four mounting holes enable easy mounting to surfaces. The board comes with three male headers.

The sensitivity and selectivity of the MQ137 sensor allow it to effectively detect and measure levels of ammonia, making it a valuable tool for applications such as gas leakage detection, agricultural monitoring, and environmental sensing. By integrating the MQ137 sensor with appropriate electronic circuits and microcontrollers like Dasduino, you can create systems that provide real-time monitoring and prompt alerts in the presence of hazardous ammonia concentrations. It requires a short time to heat up in order to work correctly.

The breakout board provides digital and analog information through the easyC system. Sensor readings are obtained through easyC.

Product usage tips:

When gas is detected, the LED will start glowing. It will remain off if it doesn’t detect anything. Four mounting holes enable easy mounting to surfaces. The board comes with three male headers.

The versatility of the MQ135 sensor allows for its use in applications such as indoor air quality monitoring, gas leakage detection, and environmental sensing. While its main target gas is carbon dioxide (CO2), it is also sensitive to various other gases, including volatile organic compounds (VOCs), alcohol vapors, benzene, smoke, and other harmful gases commonly found in the environment. By integrating the MQ135 sensor with appropriate electronic circuits and microcontrollers like Dasduino, you can create systems that enable real-time monitoring and analysis of gas concentrations, allowing you to take necessary actions to maintain a healthy and safe environment.

The MQ135 air quality measurement module operates at 5V and consumes approximately 150mA. It requires some time to heat up before it can provide accurate results.

The breakout board provides digital and analog information through the easyC system. Sensor readings are obtained through easyC.

Product usage tips:

When gas is detected, the LED will start glowing. It will remain off if it doesn’t detect anything. Four mounting holes enable easy mounting to surfaces. The board comes with three male headers.

The MQ131-H is the high concentration version of the MQ131 ozone sensor, designed for detecting ozone (O₃) levels in the 10–1000 ppm range. This sensor offers good sensitivity to O₃ and operates on the semiconductor detection principle, making it ideal for industrial and environmental applications.

The sensitivity and selectivity of the MQ131 sensor enable it to effectively detect and measure ozone levels, making it a valuable tool for applications such as air quality monitoring, ozone generators, and ozone leakage detection systems. By integrating the MQ131 sensor with appropriate electronic circuits and microcontrollers like Dasduino, you can create systems that enable real-time monitoring of ozone concentration and trigger alerts when dangerous levels are detected.

The breakout board provides digital and analog readings via the easyC system, allowing smooth integration with platforms that support this interface. Sensor data is easily accessible through easyC.

Product usage tips:

• • When gas is detected, the LED will light up. It will remain off if no gas is detected.

  • The board includes four mounting holes for easy installation.

  • Comes with three male headers for UPDI programming the onboard ATTINY, which is not required for normal usage

We are surrounded by invisible gases everywhere. Although we generally don’t have to worry about them, in certain circumstances they can be very flammable and dangerous. The MQ9 breakout detects carbon monoxide, methane, propane and other flammable gases so that the right measures can be taken in time. The sensor detects carbon monoxide at 10-1000 ppm and other flammable gases at 100-10000 ppm.

The breakout board provides digital and analog information via the easyC system. Sensor readings are obtained via easyC.

Product usage tips:

When gas is detected, the LED will start glowing. It will remain off if it doesn’t detect anything. Four mounting holes enable easy mounting to surfaces. The board comes with three male headers.

Hydrogen is all around us, and it is dangerous because it is highly flammable. Its leakage can be very dangerous for both life and property. That is why it is important to detect any leakage to prevent such losses in the industry. To do this, hydrogen sensors such as the MQ8 breakout board are used. The sensor detects hydrogen in the range of 100-1000 ppm.

The breakout board provides digital and analog information via the easyC system. Sensor readings are obtained via easyC.

Product usage tips:

When gas is detected, the LED will start glowing. It will remain off if it doesn’t detect anything. Four mounting holes enable easy mounting to surfaces. The board comes with three male headers.

The sensitivity and selectivity of the MQ7 sensor enable it to effectively detect and measure carbon monoxide levels, making it a crucial tool for applications such as gas leakage detection, security systems, and environmental monitoring. By integrating the MQ7 sensor with appropriate electronic circuits and microcontrollers like Dasduino, you can create systems that enable real-time monitoring and prompt alerts in the presence of hazardous CO concentrations. It requires a short time to warm up in order to work correctly.

The breakout board provides digital and analog information through the easyC system. Sensor readings are obtained through easyC.

Product usage tips:

When gas is detected, the LED will start glowing. It will remain off if it doesn’t detect anything. Four mounting holes enable easy mounting to surfaces. The board comes with three male headers.

Humans can detect many smells, but may have difficulty distinguishing gases. That’s why we use sensors like the MQ6 that detects LPG and butane in the air. When heated to the optimal operating temperature, it very quickly detects changes in air concentration between 200 and 10,000 ppm.

The breakout board provides digital and analog information via the easyC system. Sensor readings are obtained via easyC.

Product usage tips:

When gas is detected, the LED will start glowing. It will remain off if it doesn’t detect anything. Four mounting holes enable easy mounting to surfaces. The board comes with three male headers.

Is your office located near a high traffic area? Are you concerned about the presence of natural and liquefied petroleum gases in your work environment? The MQ series sensors can help detect various gases, and the MQ5 sensor is an easy-to-use sensor that provides information about the levels of natural gases and LPG (liquefied petroleum gas) in your surroundings. It quickly detects gas particles in the range of 200 to 10,000 ppm.

The breakout board provides digital and analog information through the easyC system. Sensor readings are obtained through easyC.

Product usage tips:

When gas is detected, the LED will start glowing. It will remain off if it doesn’t detect anything. Four mounting holes enable easy mounting to surfaces. The board comes with three male headers.

Have you ever wondered how much natural gas and methane are present in your living room? You can easily measure it! The MQ4 breakout board is a user-friendly sensor that detects natural gas and methane (CH4) in the air. Once it reaches operating temperature, it quickly detects changes in air concentration within the range of 200 to 10,000 ppm.

The breakout board provides digital and analog information through the easyC system. Sensor readings are obtained through easyC.

Product usage tips:

When gas is detected, the LED will start glowing. It will remain off if it doesn’t detect anything. Four mounting holes enable easy mounting to surfaces. The board comes with three male headers.

MQ sensors, including the MQ3 sensor, have the capability to detect various gases. The MQ3 sensor is specifically designed to detect alcohol vapors. This means it is sensitive to alcohols such as methanol, ethanol, and isopropanol. The MQ3 sensor is commonly used for measuring alcohol concentration in the air and serves as a useful tool for alerting to the presence of alcohol in the environment.

It is important to note that MQ sensors are not specific to only one gas and can react to other gases besides the ones they are specifically designed for. Therefore, it is important to use the MQ3 sensor exclusively for alcohol detection and follow the manufacturer’s instructions to achieve optimal accuracy and reliability of measurements. It requires a short time to heat up in order to work correctly.

The breakout board provides digital and analog information through the easyC system. Sensor readings are obtained through easyC.

Product usage tips:

When gas is detected, the LED will start glowing. It will remain off if it doesn’t detect anything. Four mounting holes enable easy mounting to surfaces. The board comes with three male headers.

MQ sensors, including the MQ2 sensor, have the capability to detect various gases. The MQ2 sensor is specifically designed to detect combustible gases such as LPG (liquefied petroleum gas), butane, propane, methane, alcohol, hydrogen, and smoke. These gases are commonly found in residential, industrial, and automotive environments. The sensor’s sensitivity and responsiveness enable it to detect even trace amounts of these gases, making it a valuable tool for gas leakage detection, fire detection, and air quality monitoring. It takes a short time to heat up in order to work correctly.

The breakout board provides digital and analog information through the easyC system. Sensor readings are obtained through easyC.

Product usage tips:

When gas is detected, the LED will start glowing. It will remain off if it doesn’t detect anything. Four mounting holes enable easy mounting to surfaces. The board comes with three male headers.

The MQ138 sensor is specifically designed to detect various gases, with a primary focus on air quality monitoring. While its main target gas is formaldehyde (HCHO), it is also sensitive to a range of other gases, including volatile organic compounds (VOCs – toulen, alcohol, acetone and hydrogen) and other harmful gases commonly found in the environment. It takes a short time to heat up in order to work correctly.

The breakout board works with both digital (DO) and analog signals (AO). The digital output is obtained by setting a threshold value with a potentiometer. The analog output will differ depending on the intensity of the gas.

Product usage tips:

When gas is detected, the LED will start glowing. It will remain off if it doesn’t detect anything. Two mounting holes enable easy mounting to surfaces. The board comes with four male headers that need to be soldered.

The MQ137 sensor’s sensitivity and selectivity allow it to effectively detect and measure ammonia levels, making it a valuable tool for applications such as gas leakage detection, agricultural monitoring, and environmental sensing. By integrating the MQ137 sensor with appropriate electronic circuits and microcontrollers like Dasduino, you can create systems that provide real-time monitoring and prompt alerts in the presence of hazardous ammonia concentrations. It takes a short time to heat up in order to work correctly.

The breakout board works with both digital (DO) and analog signals (AO). The digital output is obtained by setting a threshold value with a potentiometer. The analog output will differ depending on the intensity of the gas.

Product usage tips:

When gas is detected, the LED will start glowing. It will remain off if it doesn’t detect anything. Two mounting holes enable easy mounting to surfaces. The board comes with four male headers that need to be soldered.

The MQ135 sensor’s versatility allows it to be used for applications such as indoor air quality monitoring, gas leakage detection, and environmental sensing. While its main target gas is carbon dioxide (CO2), it is also sensitive to a range of other gases including volatile organic compounds (VOCs), alcohol vapors, benzene, smoke, and other harmful gases commonly found in the environment. By integrating the MQ135 sensor with appropriate electronic circuits and microcontrollers like Dasduino, you can create systems that provide real-time monitoring and analysis of gas concentrations, enabling you to take necessary actions for maintaining a healthy and safe environment.

The breakout board works with both digital (DO) and analog signals (AO). The digital output is obtained by setting a threshold value with a potentiometer. The analog output will differ depending on the intensity of the gas.

The MQ135 air quality sensor module operates at 5V and consumes around 150mA. It requires some pre-heating before it could actually give accurate result.

The MQ131-H is the high concentration version of the MQ131 ozone sensor, designed for detecting ozone (O₃) levels in the 10–1000 ppm range. This sensor offers good sensitivity to O₃ and operates on the semiconductor detection principle, making it well-suited for industrial and environmental applications.

The MQ131 sensor’s sensitivity and selectivity enable it to effectively detect and measure ozone levels, making it a valuable tool for applications such as air quality monitoring, ozone generators, and ozone leakage detection systems. By integrating the MQ131 sensor with appropriate electronic circuits and microcontrollers like Dasduino, you can create systems that provide real-time ozone concentration monitoring and trigger alerts when hazardous levels are detected.

The breakout board works with both digital (DO) and analog signals (AO). The digital output is obtained by setting a threshold value with a potentiometer, while the analog output will vary depending on the intensity of the detected gas.

Product usage tips:

• When gas is detected, the LED will light up. It will remain off if no gas is detected.
• The board includes two mounting holes for easy installation on surfaces.
• Four male headers are included but need to be soldered by the user.

We are surrounded by invisible gases everywhere. While we generally don’t have to worry about them, under the right circumstances, they can be very combustible and dangerous. The MQ9 breakout board detects carbon monoxide, methane, propane, and other flammable gases so the right measures can be taken in time. The sensor detects carbon monoxide at 10-1000 ppm and other combustible gasses at 100-10000 ppm.

The digital and analog outs can be found on the through-holes. They are marked as DO and AO respectively. The digital output can be obtained by setting a threshold value with a potentiometer. The analog output will depend on the intensity of the gases.

Product usage tips:

The sensor needs 48 hours to preheat to optimal working temperature. If it detects some gas, the LED will glow. If there are no gases, it will remain off. The board can be attached to the project thanks to the two mounting holes. It comes with four pins that need to be soldered.

Due to its long life, the breakout board can be used for quite some time without a second thought. To prevent damage to the sensor, avoid dipping it in water or freezing it. Highly corrosive gases will weaken the sensor significantly.

Hydrogen is all around us, and it’s very flammable. Its leakage can be very dangerous to both life and property. That’s why it’s important to detect any leakage to prevent in the industry. To help with that, hydrogen sensors like the MQ8 breakout board are used. The sensor detects hydrogen at the range of 100-1000 ppm.

The digital and analog outs are on the breakout through-hole pins. They are marked as DO and AO respectively. By setting a threshold value with a potentiometer, you can get the digital output. The analog output will depend on how much gas is detected around the sensor.

Product usage tips:

The sensor needs 48 hours to preheat to optimal working temperature. The LED on the board will remain off if it detects no gas, and will glow once it does. Two mounting holes allow you to easily secure the board in place. The four pins provided need to be soldered.

Due to its long life, you won’t have to worry about changing the sensor often. To prevent damage to the sensor, do not submerge it underwater or freeze it. It will be weakened by highly corrosive gases as well.

The MQ7 sensor’s sensitivity and selectivity allow it to effectively detect and measure carbon monoxide levels, making it a crucial tool for applications such as gas leakage detection, safety systems, and environmental monitoring. By interfacing the MQ7 sensor with appropriate electronic circuits and microcontrollers like Arduino, you can create systems that provide real-time monitoring and prompt alerts in the presence of hazardous CO concentrations. It needs a bit of time to warm up in order to work correctly.

The breakout board works with both digital (DO) and analog signals (AO). The digital output is obtained by setting a threshold value with a potentiometer. The analog output will differ depending on the intensity of the gas.

Product usage tips:

When gas is detected, the LED will start glowing. It will remain off if it doesn’t detect anything. Two mounting holes enable easy mounting to surfaces. The board comes with four male headers that need to be soldered.

Humans can detect many scents, but can have difficulties when it comes to differentiating gases. That’s why we use sensors like MQ6. It detects LPG and butane in the air. When heated to the optimum working temperature, it detects changes in air concentrations very quickly between 200 and 10000 ppm.

The DO pin stands for digital out. AO stands for analog out. The digital output is obtained by setting a threshold value using the potentiometer. The analog output will depend on the intensity of the gas around the sensor.

Product usage tips:

Preheating the sensor to the optimal working temperature takes 24 hours. The LED on the board will glow when gas is detected. It will remain off when it’s not. The board has two mounting holes for easy attachment to the project. It comes with four pins that need to be soldered.

You can use the board for years due to its long life. To prevent damage to the sensor, it should not be dipped in water or frozen. Highly corrosive gases will render the sensor useless. Cooking fumes and cigarette smoke will interfere with the sensor.

Is your office near a high-traffic area? Are you concerned about the amount of natural and liquefied petroleum gases in your work environment? The MQ5 is a simple-to-use sensor to put your mind at ease. It detects gas particles very quickly between 200 and 10000 ppm.

The breakout board works with both digital (DO) and analog signals (AO). The digital output is obtained by setting a threshold value with a potentiometer. The analog output will differ depending on the intensity of the gas.

Product usage tips:

The sensor takes 24 hours to preheat to optimal working temperature. When gas is detected, the LED will start glowing. It will remain off if it doesn’t detect anything. Two mounting holes enable easy mounting to surfaces. The board comes with four pins that need to be soldered.

The breakout board boasts a long life so you don’t have to worry about it suddenly breaking. Submerging the sensor underwater and freezing it will damage it beyond repair. Highly corrosive gases will also damage the sensor.

Have you ever wondered how much natural gas and methane are in your living room? You can easily measure that! The MQ4 breakout board is a simple-to-use sensor that detects the natural gas and methane (CH4) in the air. Once heated to working temperature, it detects changes in air concentrations very quickly between 200 and 10000 ppm.

On the through-holes, the DO stands for digital out and AO for analog out. The digital output is obtained by setting a threshold value using the potentiometer. The analog output will depend on the intensity of the gas around the sensor.

Product usage tips:

The sensor will take 24 hours to preheat to working temperature. The LED on the board will glow when gas is detected, and remain off when it’s not. The board can easily be secured in place using the two mounting holes. It comes with four pins that need to be soldered.

Due to its long life, you can use this board for years without much of a thought. Dipping the sensor in water and freezing it will damage it, so avoid doing that. Highly corrosive gases will weaken it significantly, making it useless.