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.
BMP280 Digital Pressure Sensor Module
SKU: DF-SEN0372 | Brand: DFRobot
This is a breakout version of BMP280 Barometric Pressure Sensor from DFRobot with temperature and pressure measurement functions, supporting Arduino code control.Housed in an extremely compact package, the BMP280 is b...
Delivered by Mon 26 Oct
Gravity: SHT31-F Digital Temperature and Humidity Sensor
SKU: DF-SEN0334 | Brand: DFRobot
Gravity: SHT31-F digital temperature and humidity sensor is based upon the Sensirion SHT31-F sensor IC. Thanks to Sensirion’s CMOSens® technology, highly integrated capacitive humidity sensing components and band-gap ...
Delivered by Wed 4 Nov
Adafruit AHT20 - Temperature Humidity Sensor Breakout Board - STEMMA QT / Qwiic
SKU: AF-4566 | Brand: Adafruit
The Adafruit AHT20 is an affordable I2C temperature and humidity sensor from the makers of the popular DHT22. It delivers reliable readings with standard I2C communication, making it easy to use with any Arduino, Rasp...
Delivered by Tue 17 Nov
Octopus MQ3 Alcohol Sensor Brick
SKU: EF-EF04060 | Brand: ElecFreaks
The Octopus MQ3 Alcohol Sensor Brick from ElecFreaks is an analogue gas sensor module with high sensitivity to alcohol vapour. It outputs an analogue voltage proportional to the detected alcohol concentration, making ...
Delivered by Mon 9 Nov
Gravity: I2C Non-contact IR Temperature Sensor (MLX90614-DCI)
SKU: DF-SEN0263 | Brand: DFRobot
We can divide temperature measurement in to two types: contact and non-contact. Contact measurement can only accurately measure temperature when the testing object and the sensor reach thermal equilibrium. This ca...
Delivered by Wed 4 Nov
Adafruit BME680 - Temperature, Humidity, Pressure and Gas Sensor
SKU: AF-3660 | Brand: Adafruit
The BME680 from Bosch delivers comprehensive environmental sensing in a single compact package. This precision sensor measures temperature, humidity, barometric pressure, and VOC gas levels, all accessible over I2C or...
Delivered by Tue 17 Nov
MCP9808 High Accuracy I2C Temperature Sensor Breakout Board
SKU: AF-1782 | Brand: Adafruit
This I2C digital temperature sensor is one of the more accurate/precise we've ever seen, with a typical accuracy of ±0.25°C over the sensor's -40°C to +125°C range and precision of +0.0625°C. They work great with any ...
Delivered by Tue 17 Nov
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 Mon 26 Oct
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 Mon 26 Oct
DS18B20 Digital temperature sensor + extras
SKU: AF-374 | Brand: Adafruit
These 1-wire digital temperature sensors are fairly precise (±0.5°C over much of the range) and can give up to 12 bits of precision from the onboard digital-to-analog converter. They work great with any microcontro...
Delivered by Mon 26 Oct
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 Mon 26 Oct
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 Tue 17 Nov
Adafruit LPS28 (LPS28DFW) Pressure Sensor - STEMMA QT / Qwiic
SKU: AF-6067 | Brand: Adafruit
The Adafruit LPS28 Pressure Sensor Breakout features the ST LPS28DFW — a barometric pressure sensor with an extended range up to 4060 hPa, far beyond the ~1260 hPa limit of most competing sensors. This makes it suitab...
Delivered by Tue 17 Nov
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 Mon 9 Nov
ELECFREAKS PlanetX Waterproof 18B20 Temperature Sensor
SKU: EF-EF05041 | Brand: ElecFreaks
The PlanetX Waterproof 18B20 Temperature Sensor is a sensor that senses temperature and converts it into a usable output signal. It is waterproof and can be used for temperature measurement. It is usually used for the...
Delivered by Mon 9 Nov
Adafruit BNO055 + BMP280 BFF Add-On for QT Py
SKU: AF-5937 | Brand: Adafruit
The Adafruit BNO055 + BMP280 BFF is a compact add-on board that gives any QT Py or Xiao board powerful 9-degree-of-freedom (9-DoF) motion sensing plus barometric pressure and altitude measurement. It mounts directly o...
Delivered by Tue 17 Nov
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 Wed 4 Nov
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 Wed 4 Nov
SparkFun CO₂ Humidity and Temperature Sensor - SCD40 (Qwiic)
SKU: SF-SEN-22395 | Brand: SparkFun
The SparkFun SCD40 breakout board measures CO₂ concentration, humidity, and temperature using Sensirion's PASens photoacoustic measurement technology. The sensor detects CO₂ from 0 to 40,000 ppm with high accuracy ove...
Delivered by Wed 4 Nov
MIKROE Weather Click
SKU: SF-SEN-18823 | Brand: SparkFun
MIKROE Weather Click carries BME280 integrated environmental unit from Bosch. It’s a sensor that detects humidity, pressure, and temperature, specifically designed for low current consumption and long-term stability. ...
Delivered by Mon 26 Oct