Gas
Gas sensors: MQ-2, MQ-3, MQ-4, MQ-5, MQ-7, MQ-135 and MQ-137 modules, MH-Z19 NDIR CO2 sensor and BME680 air quality sensor.
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BME680 Temperature, Humidity, Pressure and Gas Sensor
Quick Info :
- Interface: I²C (up to 3.4 MHz) and SPI (3 and 4 wire, up to 10 MHz)
- Compatible with 3.3V and 5V Systems
- Gas, humidity, pressure and temperature.
Rs 3,290.00Rs 3,390.00BME680 Temperature, Humidity, Pressure and Gas Sensor
Rs 3,290.00Rs 3,390.00 -
MH-Z19 NDIR CO2 Gas Sensor Module
Quick Info:
- Detection Principle : Non-Dispersive Infrared (NDIR)
- Detection Range : 400 to 5000 ppm CO2
- Output Signal : UART & PWM
- Operating Voltage : 5V DC
Rs 7,750.00Rs 7,950.00MH-Z19 NDIR CO2 Gas Sensor Module
Rs 7,750.00Rs 7,950.00 -
MQ-135 Gas Sensor Module for Air Quality
Quick Info :
- Operating Voltage: 2.5V to 5.0V
- Power consumption: 150mA
- Detect/Measure: NH3, Nox, CO2, Alcohol, Benzene, Smoke
- Typical operating Voltage: 5V
Rs 450.00Rs 520.00MQ-135 Gas Sensor Module for Air Quality
Rs 450.00Rs 520.00 -
MQ-137 Ammonia Gas Sensor Module
Quick Info:
- Detection Gas : Ammonia (NH₃)
- Detection Range : 5 – 500 ppm
- Operating Voltage : 5V DC
- Output Type : Digital & Analog
- Interface : 4-pin (VCC, GND, DO, AO)
- Compatible With : Arduino, ESP32, Raspberry Pi
Rs 10,500.00Rs 12,000.00MQ-137 Ammonia Gas Sensor Module
Rs 10,500.00Rs 12,000.00 -
MQ-3 Gas Sensor Module for Alcohol
Quick Info :
- Power requirements: 5 VDC
- Current Consumption: 150mA
- DO output: TTL digital 0 and 1 ( 0.1 and 5V)
- AO output: 0.1- 0.3 V (relative to pollution), the maximum concentration of a voltage of about 4V
- Detecting Concentration: 0.05-10mg/L Alcohol
Rs 480.00Rs 590.00MQ-3 Gas Sensor Module for Alcohol
Rs 480.00Rs 590.00 -
MQ-4 Gas Sensor Module for Methane Gas
Quick Info :
- Power requirements : VCC – 5V±0.1
- DO output : TTL digital 0 and 1 (0.1 and 5V)
- AO output : 0.1-0 .3 V (relative to pollution), the maximum concentration of a voltage of about 4V
- Detection Gas : Natural gas/Methane
- Detection Concentration : 200-10000ppm (Natural gas / Methane)
Rs 590.00MQ-4 Gas Sensor Module for Methane Gas
Rs 590.00 -
MQ-5 Gas Sensor Module H2 LPG CH4 CO Alcohol
Quick Info:
- Sensor Type : MQ-5
- Detectable Gases : H2, LPG, CH4, CO, Alcohol
- Operating Voltage : 5V DC
- Output Type : Analogue & Digital
- Detection Range : 200 – 10000 ppm
- Compatible Platforms : Arduino, Raspberry Pi, ESP32
Rs 480.00Rs 550.00MQ-5 Gas Sensor Module H2 LPG CH4 CO Alcohol
Rs 480.00Rs 550.00 -
MQ-7 Gas Sensor Module for Carbon Monoxide
Quick Info :
- Power requirements : VCC – 5V±0.1
- DO output : TTL digital 0 and 1 (0.1 and 5V)
- AO output : 0.1-0 .3 V (relative to pollution), the maximum concentration of a voltage of about 4V
- Detection Gas: Carbon Monoxide
Rs 525.00Rs 590.00MQ-7 Gas Sensor Module for Carbon Monoxide
Rs 525.00Rs 590.00 -
MQ138 VOC Gas Sensor
Quick Info :
- Sensor Type: VOC Gas Sensor
- Model: MQ138
- Detection Range: 5-500 ppm
- Heater Voltage: 5.0V DC or AC
- Applications: Gas Alarms, Portable Detectors
Rs 10,500.00Rs 10,900.00MQ138 VOC Gas Sensor
Rs 10,500.00Rs 10,900.00 -
MQ-136 Hydrogen Sulfide H2S Gas Sensor Module
Quick Info:
- Sensor Type : Semiconductor (SnO₂)
- Target Gas : Hydrogen Sulfide (H2S)
- Detection Range : 1 – 200 ppm
- Output Type : Analog + Digital
- Operating Voltage : 5V DC
- Preheat Time : ≥ 24 hours (initial use)
- Pins : 4 (VCC, GND, AOUT, DOUT)
Rs 2,900.00Rs 3,500.00MQ-136 Hydrogen Sulfide H2S Gas Sensor Module
Rs 2,900.00Rs 3,500.00 -
MQ-2 Gas Sensor Module for Combustible Gas
Quick Info :
- Operating Voltage is +5V
- Can be used to Measure or detect LPG, Alcohol, Propane, Hydrogen, CO and even methane
- Analog output voltage: 0V to 5V
- Digital Output Voltage: 0V or 5V (TTL Logic)
Rs 420.00Rs 490.00MQ-2 Gas Sensor Module for Combustible Gas
Rs 420.00Rs 490.00
Sensors for air quality and gas leak projects: MQ-2 for smoke and combustible gas, MQ-3 alcohol, MQ-4 methane, MQ-5 LPG, MQ-7 carbon monoxide, MQ-135 air quality and MQ-137 ammonia, the MH-Z19 NDIR sensor for accurate CO2 readings and the BME680 that adds gas to temperature, humidity and pressure. MQ sensors heat up, need a few minutes to stabilise and draw more current than most sensors. Use them to learn and to raise alarms, not as certified safety devices.