Environmental (temperature, humidity, air quality)

SKU: SF-SEN-17050 | Brand: SparkFun

The MQ-9B is a CO and CH₄ gas detection sensor form Winsen. The sensing material of the MQ-9B is SnO2, which has a low conductivity in clean air. It detects carbon monoxide (1.5V) by method of cycling high and low tem...

SKU: SF-SEN-17049 | Brand: SparkFun

The MQ-2 is a smoke and combustible gas sensor manufactured by Winsen. It detects flammable gases and smoke in a concentration range of 300–10,000 ppm, with particularly high sensitivity to propane and smoke. It's wid...

SKU: SF-SEN-17052 | Brand: SparkFun

The MQ-136 is a Hydrogen Sulfide detection sensor with a sensing range of 1 - 200ppm. The sensing element is SnO2, which has lower conductivity in clean air. When H₂S gas exists, the sensor’s conductivity gets higher ...

SKU: SF-SEN-17053 | Brand: SparkFun

The MQ-137 is an ammonia (NH3) gas sensor from Winsen, designed to detect ammonia concentrations in the air. The sensing element is tin dioxide (SnO2), which has lower conductivity in clean air and increases in conduc...

SKU: EF-EF04100 | Brand: ElecFreaks

Octopus MG811 CO2 Gas Sensor is a CO2 electronic brick in our OCTOPUS series, the basic design for the outlook, PCB fixing holes and connections are the same with them.The higher the CO2 concentration is, the lower th...

SKU: EF-EF04029 | Brand: ElecFreaks

An analogue gas sensor module based on the MQ-2 sensor, part of the Octopus Electronic Bricks series for plug-and-play integration with Arduino and compatible boards. Detects a wide range of combustible gases and smok...

SKU: DF-SEN0131 | Brand: DFRobot

INTRODUCTION This is an Arduino Propane Gas Sensor. It uses MQ6 probe to detect iso-butane, propane and liquefied petroleum gas (LPG). It is less sensitive with alcohol, cooking fumes an...

SKU: DF-SEN0128 | Brand: DFRobot

An analogue alcohol gas sensor based on the MQ-3 probe, designed for use with Arduino and other microcontrollers. The sensor outputs a voltage proportional to the concentration of alcohol vapour in the surrounding air...

SKU: AF-3199 | Brand: Adafruit

The Adafruit MiCS-5524 Gas Sensor Breakout is a robust MEMS sensor from SGX Sensortech for detecting carbon monoxide, natural gas leaks, alcohol, and volatile organic compounds (VOCs). It provides a simple analogue vo...

SKU: SF-SEN-09403 | Brand: SparkFun

This is a simple-to-use Carbon Monoxide (CO) sensor, suitable for sensing CO concentrations in the air. The MQ-7 can detect CO-gas concentrations anywhere from 20 to 2000ppm. This sensor has a high sensitivity and f...

SKU: DF-SEN0659 | Brand: DFRobot

This industrial CO2 probe is built for reliable carbon dioxide monitoring in environments such as indoor air quality systems, pipelines, greenhouses and fresh air systems. It uses NDIR sensing to measure CO2 from 400 ...

SKU: SF-COM-21506 | Brand: SparkFun

The ZMOD4450 is a compact gas sensor module for detecting gases associated with food ripening or rotting. It is intended for refrigeration air quality (RAQ) applications such as food storage and shipping, including hu...