Gas Sensor
Gas sensors, also known as gas detectors or gas leak detectors, are critical electronic components used to detect toxic, combustible, or hazardous gases and measure gas concentrations in various environments. These sensors are essential for safety, air quality monitoring, and industrial automation.
Our collection includes a broad range of high-performance gas sensors, including the popular MQ series:
- MQ-2 – Methane, Butane, LPG, Smoke
- MQ-3 – Alcohol, Ethanol, Smoke
- MQ-4 – Methane, CNG Gas
- MQ-5 – Natural Gas, LPG
- MQ-6 – LPG, Butane
- MQ-7 – Carbon Monoxide
- MQ-8 – Hydrogen Gas
- MQ-9 – Carbon Monoxide, Flammable Gases
- MQ131 – Ozone
- MQ135 – Air Quality (CO, Ammonia, Benzene, Alcohol, Smoke)
- MQ136 – Hydrogen Sulfide
- MQ137 – Ammonia
- MQ138 – Benzene, Alcohol, Propane, Formaldehyde, Hydrogen
- MQ214 – Methane, Natural Gas
We feature gas sensors from top global brands, including:
DFROBOT, WINSEN, ASAIR, ACEBOTT, SHARP MICROELECTRONICS, AOSONG, SHARP, RENESAS, PLANTOWER, SENSIRION, INFINEON, MEMSFRONTIER, MASTECH, SEEED STUDIO, FIGARO, MIKROE, PIMORONI, ADAFRUIT, and WAVESHARE.
Whether you’re working on prototyping, air purification systems, or smart industrial controls, our gas sensors offer precision, durability, and peace of mind.
- Product
- Qty in Cart
- Quantity
- Price
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MH-Z19 infrared CO2 sensor for CO2 monitor with pin
Olimex
TZS115,116.50Features: CATEGORY SPECIFICATIONS Product Type- SKU:
- PEWMZ16
TZS115,116.50 -
MP135 Air Pollution Level Meter Gas Sensor
Dikavs
TZS10,360.49MP135 is generally preferred to measure the amount of gases such as ammonia and nitrogen in the environment. Thanks to the Al2O3 (Aluminum oxide) technology, MP135 has made the reaction time very...- SKU:
- PEDAD58
TZS10,360.49 -
MQ-214 Methane Sensor Combustible Gas Sensor
Dikavs
TZS10,360.49MQ - 214 is a Methane (CH4) gas sensor detects the concentrations of methane in the air and outputs its reading as an analog voltage. Wide detecting scope. Fast response and High sensitivity. Stable...- SKU:
- PEDAD57
TZS10,360.49 -
MQ137 Ammonia Gas Sensor
Dikavs
TZS41,441.94Sensitive material of MQ137 gas sensor is SnO2, which with lower conductivity in clean air. When NH3 gas exists, the sensor’s conductivity gets higher along with the gas concentration rising. Users...- SKU:
- PEDAD56
TZS41,441.94 -
MQ-136 Hydrogen Sulfide Gas Detection Sensor
Dikavs
TZS41,441.94Sensitive material of MQ136 gas sensor is SnO2, which with lower conductivity in clean air. When H2S gas exists, the sensor’s conductivity gets higher along with the gas concentration rising. Users...- SKU:
- PEDAD55
TZS41,441.94 -
MQ131 Ozone Gas Sensor High Concentration 10~1000ppm
Dikavs
TZS34,534.95Ozone sensors are specifically designed to detect ground-level ozone, a harmful pollutant that can irritate the respiratory system. The MQ131 gas sensor employs a semiconductor metallic oxide as its...- SKU:
- PEDAD54
TZS34,534.95 -
MQ-8 Hydrogen Gas Sensor
Dikavs
TZS5,755.83MQ-8 Working voltage: 5V DC Features: Microprocessor compatible TTL output. Analogue output. The output voltage changes proportionally to the gas concentration in the air. High precision. It...- SKU:
- PEDAD53
TZS5,755.83 -
MQ-2 LPG, Propane and Hydrogen Measuring Sensor
Dikavs
TZS5,755.83MQ-2 Working voltage: 5V DC Features: Microprocessor compatible TTL output. Analogue output. The output voltage changes proportionally to the gas concentration in the air. High precision. It...- SKU:
- PEDAD52
TZS5,755.83 -
MQ-135 Air Quality Sensor
Dikavs
TZS5,755.83MQ-135 Working voltage: 5V DC Features: Microprocessor compatible TTL output. Analogue output. The output voltage changes proportionally to the gas concentration in the air. High precision. It...- SKU:
- PEDAD51
TZS5,755.83 -
MQ Series Sensors 7 -Pin Universal
Dikavs
TZS2,302.33Features: CATEGORY SPECIFICATIONS Product Type- SKU:
- PEDAD50
TZS2,302.33 -
SGP41 Air 5V Measurement TVOC/eCO2 Formaldehyde Carbon Dioxide Detector Gas Sensor
Olimex
TZS34,534.95SGP4 is a VOC (volatile organic compounds) and NOx (nitrogen oxides) sensor designed as a digital intelligent switch and regulating unit that can be applied to air treatment equipment such as...- SKU:
- PECMG53
TZS34,534.95 -
ACEBOTT MQ-4 Gas Sensor/Natural Gas Compatible with Arduino
ACEBOTT
TZS11,511.65ACEBOTT MQ-4 Gas Sensor/Natural is a combustible gas sensor, which can detect the concentration of combustible gas in the environment. Its working principle is based on the change of electrical...- SKU:
- QB084
TZS11,511.65 -
SCD41 Gas Sensor CO2 Carbon Dioxide Temperature and Humidity
diymore
TZS92,093.20The SCD41 Gas Sensor Module is a highly advanced sensor designed to detect CO₂ (carbon dioxide) levels, temperature, and humidity with exceptional accuracy and reliability. Built on Sensirion's...- SKU:
- PEUYT44E
TZS92,093.20 -
MP-2 MP503 Smoke detection Sensor Module
Olimex
TZS17,267.48Features: CATEGORY SPECIFICATIONS P- SKU:
- PEMSV94
TZS17,267.48 -
MP-4 MP503 Combustible Gas Sensor Module
Olimex
TZS17,267.48Features: CATEGORY SPECIFICATIONS Prod- SKU:
- PEMSV92
TZS17,267.48 -
MQ-131 ozone gas sensor Module
Olimex
TZS74,825.73Features: CATEGORY SPECIFICATIONS Product Type- SKU:
- PEOSO82
TZS74,825.73 -
TGS822 alcohol gas sensor
Olimex
TZS43,744.27Features: CATEGORY SPECIFICATIONS Product Type General Purpose Gas S- SKU:
- PEDDF48
TZS43,744.27 -
MQ-137 NH3 Ammonia Gas Sensor
Olimex
TZS80,581.55Features: CATEGORY SPECIFICATIONS Product Ty- SKU:
- PESLF99
TZS80,581.55 -
MQ-136 Hydrogen Sulfide Gas Sensor
Olimex
TZS80,581.55Features: CATEGORY SPECIFICATIONS Product Ty- SKU:
- PESLF98
TZS80,581.55 -
MP-135 MP503 air quality detection gas sensor
Olimex
TZS17,267.48MP135 gas sensor is for air quality. It adopts multilayer thick film manufacturing technology. The heater and metal oxide semiconductor material on the ceramic substrate of subminiature Al2O3 are...- SKU:
- PEDDF49
TZS17,267.48 -
SOLD OUT
MH-Z14A CO2 Carbon Dioxide Sensor
Olimex
TZS92,093.20Features: CATEGORY SPECIFICATIONS Product Type- SKU:
- PEDER48
TZS92,093.20 -
MQ Series Sensors 6 -Pin Universal
Dikavs
TZS1,841.86Features: CATEGORY SPECIFICATIONS Product Type- SKU:
- PEDAD49
TZS1,841.86 -
MS-1100 Formaldehyde Benzene Gas Sensor
Olimex
TZS34,534.95Features: CATEGORY SPECIFICATIONS Product Type Air Quality / Volatile Organic Compound (VOC) Gas Sensor- SKU:
- PEGPS25
TZS34,534.95 -
ZE08-CH2O Formaldehyde sensor
Olimex
TZS69,069.90Features: CATEGORY SPECIFICATIONS Product Type- SKU:
- PEFSS62
TZS69,069.90 -
SOLD OUT
F08406 MG811 CO2 Carbon Dioxide Sensor
Olimex
TZS115,116.50Features: CATEGORY SPECIFICATIONS Product Type- SKU:
- PEFOR25
TZS115,116.50 -
MH-Z19 infrared CO2 sensor for CO2 monitor
Olimex
TZS115,116.50Features: CATEGORY SPECIFICATIONS Product Type- SKU:
- PEWMZ15
TZS115,116.50 -
MQ-4 Methane Gas Sensor
Olimex
TZS6,906.99Features: CATEGORY SPECIFICATIONS Product Type- SKU:
- PELPG12
TZS6,906.99 -
MQ-131 ozone gas sensor
Olimex
TZS73,674.56Features: CATEGORY SPECIFICATIONS Product Type Ozone Ga- SKU:
- PEOSO88
TZS73,674.56 -
TZS6,906.99 -
TZS6,906.99 -
TZS6,906.99 -
MQ-3 Alcohol Ethanol Sensor
Olimex
TZS6,906.99Features: CATEGORY SPECIFICATIONS Product Type Alcohol / Ethanol Gas- SKU:
- PEMQD23
TZS6,906.99 -
MQ-5 LPG, natural gas, coal gas Sensor
Olimex
TZS6,906.99Features : CATEGORY SPECIFICATIONS Product T- SKU:
- PEMNS45
TZS6,906.99 -
MQ-9 Liquefied Methane Gas Sensor
Olimex
TZS9,209.32Features: CATEGORY SPECIFICATIONS Product Type Carbon Monoxide (CO) & Combustible Gas Sensor Module- SKU:
- PESLF45
TZS9,209.32
MQ-7 Carbon Monoxide Gas Sensor
Olimex
TZS9,209.32Features: CATEGORY SPECIFICATIONS Product Ty- SKU:
- PECMG52
TZS9,209.32