Environmental (temperature, humidity, air quality)
Browse our range of environmental sensors for monitoring temperature, humidity, barometric pressure, and air quality. From thermistors and digital temperature probes to multi-function breakout boards measuring gas and weather conditions, you'll find sensors compatible with Arduino, Raspberry Pi, and other popular platforms.
Ideal for weather stations, IoT projects, STEM education, and industrial monitoring. Whether you're a hobbyist, student, or professional, we ship across Australia from our local warehouse.
Gravity: Arduino Carbon Monoxide Sensor (MQ7)
SKU: DF-SEN0132 | Brand: DFRobot
INTRODUCTION This is an Arduino Carbon Monoxide Sensor. It uses MQ7 probe to detect Carbon Monoxide (CO) concentrations in the air from 20 to 2000ppm. The sensitivity ca...
Delivered by Thu 2 Jul
Carbon Monoxide Sensor (MQ7)
SKU: DF-FIT0227 | Brand: DFRobot
The MQ7 is a simple-to-use Carbon Monoxide (CO) sensor suitable for detecting CO concentrations in the air. It offers a wide detection range from 20 to 2000 ppm, making it ideal for safety monitoring and air quality p...
Delivered by Tue 23 Jun
Gas Sensor Breakout
SKU: SF-BOB-08891 | Brand: SparkFun
This breakout board provides a convenient PCB adapter for MQ-series gas sensors (MQ-3, MQ-4, MQ-6, MQ-7, and MQ-8). It converts the sensor's oversized, oddly-spaced pins into a standard breakout format that's easy to ...
Delivered by Tue 23 Jun
Alcohol Gas Sensor - MQ-3
SKU: SF-SEN-08880 | Brand: SparkFun
The MQ-3 is an alcohol gas sensor suitable for detecting alcohol concentration in the air, similar to a breathalyser. It provides an analog resistive output based on alcohol concentration, with high sensitivity and fa...
Delivered by Tue 23 Jun
LPG Gas Sensor - MQ-6
SKU: SF-SEN-09405 | Brand: SparkFun
A simple-to-use MQ-6 gas sensor for detecting liquefied petroleum gas (LPG) — primarily propane and butane — in the air. The sensor detects concentrations from 200 to 10,000 ppm with high sensitivity and fast response...
Delivered by Tue 23 Jun
Adafruit ENS160 MOX Gas Sensor - Sciosense CCS811 Upgrade
SKU: AF-5606 | Brand: Adafruit
The Adafruit ENS160 is a fully integrated metal-oxide (MOX) gas sensor from ScioSense, designed as a drop-in upgrade for the now-discontinued CCS811. It combines multiple MOX sensing and heating elements on a single c...
Delivered by Mon 13 Jul
ELECFREAKS PlanetX MQ5 Sensor
SKU: EF-EF05033 | Brand: ElecFreaks
The ELECFREAKS PlanetX MQ5 Sensor is an essential sensor for environmental detection. The ELECFREAKS PlanetX MQ5 Sensor can be used to detect the leakage of flammable gas, you can use it to make a household gas leak a...
Delivered by Thu 2 Jul
Fermion: MEMS Formaldehyde HCHO Gas Detection Sensor (Breakout, 0-3ppm)
SKU: DF-SEN0563 | Brand: DFRobot
Fermion: MEMS Formaldehyde HCHO Gas Detection Sensor employs state-of-the-art micro-electromechanical system (MEMS) technology, endowing the sensor with compact dimensions (13x13x2.5mm), low power consumption (<20mA),...
Delivered by Thu 2 Jul
Fermion: MEMS Nitrogen Dioxide NO2 Gas Detection Sensor (Breakout, 0.1-10ppm)
SKU: DF-SEN0574 | Brand: DFRobot
Fermion: MEMS Nitrogen Dioxide NO2 Gas Detection Sensor employs state-of-the-art micro-electromechanical system (MEMS) technology, endowing the sensor with compact dimensions (13x13x2.5mm), low power consumption (<20m...
Delivered by Thu 2 Jul
AGS02MA I2C TVOC Gas Sensor
SKU: AF-5593 | Brand: Adafruit
The AGS02MA is a compact MOX-based TVOC (Total Volatile Organic Compounds) gas sensor with an I2C interface. It features a built-in ADC that outputs gas resistance and parts-per-billion (ppb) readings — higher ppb val...
Delivered by Mon 13 Jul
Gravity: NO2 Sensor (Calibrated) - I2C & UART
SKU: DF-SEN0471 | Brand: DFRobot
This is a sensor that detects nitrogen dioxide concentration and supports three output modes: analog, I2C, and UART. The probe has been calibrated at the factory, which can quickly and accurately measure the concentra...
Delivered by Thu 2 Jul
Gravity: O3 Sensor (Calibrated) - I2C & UART
SKU: DF-SEN0472 | Brand: DFRobot
This is a sensor that detects ozone concentration and supports three output modes: analog, I2C, and UART. The probe has been calibrated at the factory, which can quickly and accurately measure the concentration of ozo...
Delivered by Thu 2 Jul
Fermion: MEMS Gas Sensor - MiCS-5524 (Breakout)
SKU: DF-SEN0440 | Brand: DFRobot
A compact MEMS gas sensor breakout based on the MiCS-5524, capable of detecting concentrations of multiple gases including carbon monoxide (CO), methane (CH4), ethanol (C2H5OH), propane (C3H8), butane (C4H10), hydroge...
Delivered by Thu 2 Jul
Fermion: MEMS Gas Sensor - MiCS-2714 (Breakout)
SKU: DF-SEN0441 | Brand: DFRobot
This is a hydrogen and nitrogen oxide gas concentration sensor launched by DFRobot. The sensor uses MEMS technology to support gas concentration detection of NO, NO2 and H2. The matching sample code integrates the co...
Delivered by Thu 2 Jul
Dual Gas CO and CH4 Detection Sensor - MQ-9B
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...
Delivered by Thu 2 Jul
Smoke Sensor - MQ-2
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...
Delivered by Thu 2 Jul
Octopus MG811 CO2 Gas Sensor
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...
Delivered by Thu 2 Jul
Octopus Smoke Sensor MQ-2 Brick OBMQ2
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...
Delivered by Thu 2 Jul
Gravity: Arduino Propane Gas Sensor (MQ6)
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...
Delivered by Thu 2 Jul
Carbon Monoxide Flammable Gas Sensor MQ-9
SKU: PL-1483 | Brand: Pololu
This semiconductor gas sensor detects the presence of Carbon Monoxide at concentrations from 10 to 1,000 ppm and combustible gas from 100 to 10,000 ppm. The sensor’s simple analog voltage interface requires ...
Delivered by Tue 23 Jun