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
- Subtotal
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MH-Z19 infrared CO2 sensor for CO2 monitor with pin
Olimex
KES5,000.00Features: CATEGORY SPECIFICATIONS Product Type- SKU:
- PEWMZ16
KES5,000.00 -
MP135 Air Pollution Level Meter Gas Sensor
Dikavs
KES450.00MP135 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
KES450.00 -
MQ-214 Methane Sensor Combustible Gas Sensor
Dikavs
KES450.00MQ - 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
KES450.00 -
MQ137 Ammonia Gas Sensor
Dikavs
KES1,800.00Sensitive 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
KES1,800.00 -
MQ-136 Hydrogen Sulfide Gas Detection Sensor
Dikavs
KES1,800.00Sensitive 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
KES1,800.00 -
MQ131 Ozone Gas Sensor High Concentration 10~1000ppm
Dikavs
KES1,500.00Ozone 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
KES1,500.00 -
MQ-8 Hydrogen Gas Sensor
Dikavs
KES250.00MQ-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
KES250.00 -
MQ-2 LPG, Propane and Hydrogen Measuring Sensor
Dikavs
KES250.00MQ-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
KES250.00 -
MQ-135 Air Quality Sensor
Dikavs
KES250.00MQ-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
KES250.00 -
MQ Series Sensors 7 -Pin Universal
Dikavs
KES100.00Features: CATEGORY SPECIFICATIONS Product Type- SKU:
- PEDAD50
KES100.00 -
SGP41 Air 5V Measurement TVOC/eCO2 Formaldehyde Carbon Dioxide Detector Gas Sensor
Olimex
KES1,500.00SGP4 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
KES1,500.00 -
ACEBOTT MQ-4 Gas Sensor/Natural Gas Compatible with Arduino
ACEBOTT
KES500.00ACEBOTT 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
KES500.00 -
SCD41 Gas Sensor CO2 Carbon Dioxide Temperature and Humidity
diymore
KES4,000.00The 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
KES4,000.00 -
MP-2 MP503 Smoke detection Sensor Module
Olimex
KES750.00Features: CATEGORY SPECIFICATIONS P- SKU:
- PEMSV94
KES750.00 -
MP-4 MP503 Combustible Gas Sensor Module
Olimex
KES750.00Features: CATEGORY SPECIFICATIONS Prod- SKU:
- PEMSV92
KES750.00 -
MQ-131 ozone gas sensor Module
Olimex
KES3,250.00Features: CATEGORY SPECIFICATIONS Product Type- SKU:
- PEOSO82
KES3,250.00 -
TGS822 alcohol gas sensor
Olimex
KES1,900.00Features: CATEGORY SPECIFICATIONS Product Type General Purpose Gas S- SKU:
- PEDDF48
KES1,900.00 -
MQ-137 NH3 Ammonia Gas Sensor
Olimex
KES3,500.00Features: CATEGORY SPECIFICATIONS Product Ty- SKU:
- PESLF99
KES3,500.00 -
MQ-136 Hydrogen Sulfide Gas Sensor
Olimex
KES3,500.00Features: CATEGORY SPECIFICATIONS Product Ty- SKU:
- PESLF98
KES3,500.00 -
MP-135 MP503 air quality detection gas sensor
Olimex
KES750.00MP135 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
KES750.00 -
SOLD OUT
MH-Z14A CO2 Carbon Dioxide Sensor
Olimex
KES4,000.00Features: CATEGORY SPECIFICATIONS Product Type- SKU:
- PEDER48
KES4,000.00 -
MQ Series Sensors 6 -Pin Universal
Dikavs
KES80.00Features: CATEGORY SPECIFICATIONS Product Type- SKU:
- PEDAD49
KES80.00 -
MS-1100 Formaldehyde Benzene Gas Sensor
Olimex
KES1,500.00Features: CATEGORY SPECIFICATIONS Product Type Air Quality / Volatile Organic Compound (VOC) Gas Sensor- SKU:
- PEGPS25
KES1,500.00 -
ZE08-CH2O Formaldehyde sensor
Olimex
KES3,000.00Features: CATEGORY SPECIFICATIONS Product Type- SKU:
- PEFSS62
KES3,000.00 -
SOLD OUT
F08406 MG811 CO2 Carbon Dioxide Sensor
Olimex
KES5,000.00Features: CATEGORY SPECIFICATIONS Product Type- SKU:
- PEFOR25
KES5,000.00 -
MH-Z19 infrared CO2 sensor for CO2 monitor
Olimex
KES5,000.00Features: CATEGORY SPECIFICATIONS Product Type- SKU:
- PEWMZ15
KES5,000.00 -
MQ-4 Methane Gas Sensor
Olimex
KES300.00Features: CATEGORY SPECIFICATIONS Product Type- SKU:
- PELPG12
KES300.00 -
MQ-131 ozone gas sensor
Olimex
KES3,200.00Features: CATEGORY SPECIFICATIONS Product Type Ozone Ga- SKU:
- PEOSO88
KES3,200.00 -
KES300.00 -
KES300.00 -
KES300.00 -
MQ-3 Alcohol Ethanol Sensor
Olimex
KES300.00Features: CATEGORY SPECIFICATIONS Product Type Alcohol / Ethanol Gas- SKU:
- PEMQD23
KES300.00 -
MQ-5 LPG, natural gas, coal gas Sensor
Olimex
KES300.00Features : CATEGORY SPECIFICATIONS Product T- SKU:
- PEMNS45
KES300.00 -
MQ-9 Liquefied Methane Gas Sensor
Olimex
KES400.00Features: CATEGORY SPECIFICATIONS Product Type Carbon Monoxide (CO) & Combustible Gas Sensor Module- SKU:
- PESLF45
KES400.00
MQ-7 Carbon Monoxide Gas Sensor
Olimex
KES400.00Features: CATEGORY SPECIFICATIONS Product Ty- SKU:
- PECMG52
KES400.00