Gas and pollutant detector kit. MQ-2 MQ-3 MQ-4 MQ-5 MQ-6 MQ-7 MQ-8 MQ-9 MQ135

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15.29$

Gas and pollutant detector kit for Arduino, ESP32, ESP8266 or Raspberry Pi DIY Projects.

MQ-2 • MQ-3 • MQ-4 • MQ-5 • MQ-6 • MQ-7 • MQ-8 • MQ-9 • MQ135

Gas and pollutant detector kit. MQ-2 MQ-3 MQ-4 MQ-5 MQ-6 MQ-7 MQ-8 MQ-9 MQ135

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MQ sensors are physicochemical sensors for detecting a wide variety of gases, pollutants and fumes in the atmosphere . This table lists the main technical information and refers to the technical documentation as well as the calibration instructions found on the internet.

Note. Before operating and delivering a correct measurement, some sensors must be preheated. This is the case for example of MQ-131, MQ-135, MQ-137 which require 24 hours of preheating. The MQ-137 even takes 48 hours.

Warning, do not use this detector for applications that may endanger the safety of people (medical, industrial applications, etc.)

Warning. The sensor heats up after a few minutes of use. This is normal, it is the very principle of operation of all physicochemical sensors. Take this into account when designing your project.

SensorSensitive toPreheating *Technical documentationCalibrationExample
MQ-2Methane, Butane, LPG and fumes48hReadRead
MQ-3Alcohol, Ethanol and fumes24hReadRead the article of nootropicdesign (English)
MQ-4Methane (CH4). From 300 to 10,000 ppm48h Read
MQ-5Natural gas, LPG. From 300 to 50,000 ppm. Response time less than 10s24h Read
MQ-6LPG, butane. From 200 to 10,000 ppm48 Read
MQ-7Carbon monoxide (CO). From 20 to 2000 ppm48h Read
MQ-8Hydrogen. From 100 to 10,000 ppm24h Read
MQ-9Carbon monoxide, methane (CH4) Read Read the seeedstudio article
MQ131Ozone Read
MQ135Air quality24h ReadRead
MQ136 Gaseous hydrogen sulfide (H2S). From 1 to 1000 ppm24h Read
MQ137Ammonia. From 5 to 500ppm Read
MQ138Benzene, Toluene, Alcohol, Acetone, Propane, Formaldehyde, Hydrogen. From 10 to 1000ppm except for NH3, from 10 to 3000 ppm 24h Read
MQ214Methane (from 3000ppm to 20000ppm), LPG and propane (500ppm to 10000ppm, butane (500ppm to 10000ppm) 24h Read
MQ216Natural gas, coal gas, Propane, CH4 24hRead
MQ303AAlcohol, Ethanol, fumes + 48hReadRead
MQ306ALPG, butane

Same as MQ-6 but with lower heating voltage (0.9V)

 + 48hRead
MQ307ACarbon monoxide (CO)

Identical to MQ-7 but with a voltage varying from 0.2 to 0.9V

 + 48h Read
MQ309ACarbon monoxide, flammable gases

Identical to MQ-9 but with a voltage varying from 0.2 to 0.9V

 + 48hRead

MQx series pollutant sensor kit for Arduino, ESP32, ESP8266, Raspberry Pi projects

€15.74
in stock
1 new from €18.99
1 used from €15.21
as of 1 December 2020 2 h 00 min
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€15.74
in stock
1 new from €18.99
as of 1 December 2020 2 h 00 min
blank Amazon.com
Free shipping
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Price history for 9Pcs MQ2 MQ-3 MQ-4 MQ-5 MQ-6 MQ-7 MQ-8 MQ-9 MQ-135 Module de capteur de gaz
Latest updates:
  • CHF 13.83 - 30 November 2020
  • CHF 13.89 - 25 November 2020
  • CHF 12.74 - 19 November 2020
Since: 19 November 2020
  • Highest Price: CHF 13.89 - 25 November 2020
  • Lowest Price: CHF 12.74 - 19 November 2020
Last Amazon price update was: 1 December 2020 2 h 00 min
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