Gas Sensors

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Otronic CO2 Sensor MH-Z19B with cable
The ideal sensor for measuring air quality (CO2 / nitrogen). Can be used with an Arduino, ESP8266 or ESP32 in, for example, an air or ventilation syst...
Otronic Gas sensor and smoke sensor MQ-2 module
This analog gas sensor has a small heating element with an electronic-chemical sensor. It is suitable for use in buildings and can only be used after ...
Otronic Alcohol and ethanol sensor MQ-3
This analog gas sensor has a small heating element with an electronic-chemical sensor. It is suitable for use in buildings and can only be used after ...
Otronic Gas sensor MQ-5 module
Sensor for measuring the concentration of benzenes, alcohol and smoke in the air, for example to detect gas leaks (gas alarm) or to monitor air qualit...
Otronic MQ-135 Gas sensor module Ammonia Sulfur Gasoline
This module contains a sensor to detect the concentrations of various harmful gases in the air. The MQ-135 can detect gas concentrations from 300 to...
Otronic Carbon Monoxide Sensor MQ-7
Heater Voltage: 5&plusmn;0.2VAC or DC Current: 140mA <span style=font...
Otronic MQ-4 Gas Sensor Module
This sensor detects the presence of methane and natural gas. Connections: 5V (5V voltage) GND (earth/min/ground) A0 (An...
Otronic Laser Fine Dust Sensor SDS011 with USB module
The SDS011 fine dust sensor uses the principle of laser scattering to detect particles between 0.3 and 10 &micro;m in the air. Thanks to the dig...
Otronic MQ-9 Gas sensor module
From the MQ sensor family this is the MQ-9 and this sensor detects the presence of carbon monoxide, methane and LPG. 5V (5V voltage)G...
Otronic MQ-8 Gas sensor module Hydrogen gas
This sensor detects the presence of hydrogen gas. Connections: 5V (5V voltage) GND (ground) A0 (A...
Otronic Gas sensor MQ-6 module LPG Propane Butane
Features - Arduino compatible- High sensitivity (adjustable via potentiometer)- Threshold value setting possible...