MQ-135 Gas Sensor Module

৳ 185

MQ135 gas sensor has high sensitivity to ammonia gas, sulfide, benzene series steam, also can monitor smoke and other toxic gases well.
  • Model Number:MQ135 Gas Sensor
  • Sensitivity to Ammonia, Sulfide and Benzene steam
  • Sensitive for benzene, alcohol, smoke
  • Fast response and recovery
  • Adjustable sensitivity
  • Signal output indicator
  • Output voltage boosts along with the concentration of the measured gases increases.

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SKU: A1BP081 Categories: , Tags: ,

MQ-135 Gas Sensor Module

MQ-135 gas sensor module has high sensitivity to ammonia gas, sulfide, benzene series steam, also can monitor smoke and other toxic gases well. It can detect kinds of toxic gases and is a kind of low-cost sensor for kinds of applications.

MQ-135 Sensor Features

  • Wide detecting scope
  • Fast response and High sensitivity
  • Stable and long life
  • Operating Voltage is +5V
  • Detect/Measure NH3, NOx, alcohol, Benzene, smoke, CO2, etc.
  • Analog output voltage: 0V to 5V
  • Digital output voltage: 0V or 5V (TTL Logic)
  • Preheat duration 20 seconds
  • Can be used as a Digital or analog sensor
  • The Sensitivity of Digital pin can be varied using the potentiometer

Related video:  MQ-135 Gas Sensor Module


Introduction. MQ gas sensors are a family of sensors which are used to detect a wide variety of gases like alcohol, smoke, methane, LPG, hydrogen, NH3, Benzene, Propane etc. These sensors are made up of electrode which is coated with a sensing material, and it is heated to make it more reactive and sensitive.
Yes. This sensor can be used to measure accurate CO2 in the air.
While using the library-supported Arduino setup, MQ-135 gas sensor calibration is done at first by finding the value of Ro in fresh air, and then using that value to find Rs through the formula: Rs = (Vcc/VRL-1)x RL, that means Rs = (5V/(sensorValue * (5.0/1023.0))-1)*RL.
Sensors should be located near the floor for gases or vapors three or four times heavier than air. They should be installed near the ceiling or roof to detect lighter-than-air gases.

Alternative MQ Gas sensors –

Sensor NameGas to measure
MQ-2Methane, Butane, LPG, Smoke
MQ-3Alcohol, Ethanol, Smoke
MQ-4Methane, CNG Gas
MQ-5Natural gas, LPG
MQ-6LPG, butane
MQ-7Carbon Monoxide
MQ-8Hydrogen Gas
MQ-9Carbon Monoxide, flammable gasses
MQ135Air Quality
MQ136Hydrogen Sulphide gas
MQ138Benzene, Toluene, Alcohol, Propane, Formaldehyde gas, Hydrogen
MQ214Methane, Natural Gas
MQ216Natural gas, Coal Gas
MQ303AAlcohol, Ethanol, smoke
MQ306ALPG, butane
MQ307ACarbon Monoxide
MQ309ACarbon Monoxide, flammable gas

Also, do not forget to check out our other Gas / Air modules in the Gas & Air section.

MQ-135 গ্যাস সেন্সর মডিউলটির অ্যামোনিয়া গ্যাস, সালফাইড, বেনজিন সিরিজের বাষ্পের প্রতি উচ্চ সংবেদনশীলতা রয়েছে, এছাড়াও ধোঁয়া এবং অন্যান্য বিষাক্ত গ্যাসগুলি ভালভাবে নিরীক্ষণ করতে পারে। এটি বিভিন্ন ধরণের বিষাক্ত গ্যাস সনাক্ত করতে পারে এবং এটি বিভিন্ন ধরণের অ্যাপ্লিকেশনের জন্য কম খরচের সেন্সর।

MQ-135 Gas Sensor Module best price in Bangladesh (BD)


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