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.
SparkFun Arduino IoT Weather Station
SKU: SF-KIT-22636 | Brand: SparkFun
Building a weather station can be rewarding whether you're an agriculturalist, professional meteorologist, or weather hobbyist. Create your own weather station effortlessly using SparkFun's Arduino IoT Weather Stat...
Delivered by Wed 4 Nov
Fermion: MEMS Ethanol EtOH Gas Detection Sensor (Breakout, 1-500ppm)
SKU: DF-SEN0569 | Brand: DFRobot
The Fermion MEMS Ethanol (EtOH) Gas Detection Sensor uses micro-electromechanical system (MEMS) technology for compact, low-power ethanol gas detection. With a detection range of 1–500 ppm, it provides qualitative mea...
Delivered by Mon 26 Oct
Fermion: MEMS Hydrogen Sulfide H2S Gas Detection Sensor (Breakout, 0.5-50ppm)
SKU: DF-SEN0568 | Brand: DFRobot
Fermion: MEMS Hydrogen Sulfide H2S 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 Mon 26 Oct
SparkFun CO₂ Humidity and Temperature Sensor - SCD41 (Qwiic)
SKU: SF-SEN-22396 | Brand: SparkFun
This SparkFun CO2 Humidity and Temperature Sensor features the next-generation SCD41 photoacoustic CO2 sensor for high-accuracy environmental readings. The SCD41 uses Sensirion's PASens® photoacoustic measurement syst...
Delivered by Wed 4 Nov
Waterproof DS18B20 Temperature Probe 0.5m with XH2.54mm Connector
SKU: LB-LS4690-50CM | Brand: Little Bird
A waterproof DS18B20 digital temperature probe with a 0.5m cable and XH2.54mm connector. Ideal for monitoring temperatures in wet or harsh environments including aquariums, hydroponics, brewing, and outdoor weather st...
Delivered by Mon 9 Nov
Gravity: I2C SCD41 Infrared CO2 Sensor (400 - 5000 ppm)
SKU: DF-SEN0536 | Brand: DFRobot
The Gravity SCD41 Infrared CO2 Sensor provides accurate carbon dioxide, temperature, and humidity measurements in a single compact module. Based on Sensirion's SCD41 sensor, it uses photoacoustic NDIR (non-dispersive ...
Delivered by Mon 26 Oct
SparkFun Indoor Air Quality Sensor - ENS160 (Qwiic)
SKU: SF-SEN-20844 | Brand: SparkFun
The SparkFun ENS160 Indoor Air Quality Sensor is a digital multi-gas sensor solution with four sensor elements that can be used in a wide range of applications including building automation, smart home, and HVAC. The ...
Delivered by Mon 26 Oct
Fermion: Multifunctional Environmental Sensor (Breakout)
SKU: DF-SEN0500 | Brand: DFRobot
This compact multifunctional environmental sensor combines four professional sensor chips into a single breakout board: SHTC3 (temperature and humidity), BMP280 (barometric pressure), VEML7700 (ambient light), and ML8...
Delivered by Wed 4 Nov
RS485 Wind Direction Transmitter
SKU: DF-SEN0482 | Brand: DFRobot
The wind direction sensor is a professional meteorological instrument used to measure horizontal wind direction. It integrates a hall sensor inside. The shell and weather vane is made of aluminum alloy material and us...
Delivered by Wed 4 Nov
Fermion: SHT40 Temperature & Humidity Sensor (Breakout)
SKU: DF-SEN0428 | Brand: DFRobot
The SHT4X is the 4th generation digital temperature and humidity sensor from Sensirion. In line with Sensirion’s industry-proven humidity and temperature sensors, the SHT40 offers consistent high accuracy within measu...
Delivered by Wed 4 Nov
Humidity and Temperature Sensor - DHT20
SKU: SF-SEN-18364 | Brand: SparkFun
The DHT20 is a factory-calibrated digital humidity and temperature sensor with an I²C interface. An upgrade to the popular DHT11/DHT22 series, it provides reliable environmental measurements without requiring addition...
Delivered by Mon 26 Oct
Adafruit EMC2101 I2C PC Fan Controller and Temperature Sensor - STEMMA QT / Qwiic
SKU: AF-4808 | Brand: Adafruit
The Adafruit EMC2101 breakout is an I2C fan controller and temperature sensor that makes it easy to integrate 3-pin or 4-pin PC fans into your projects. The Microchip/SMSC EMC2101 handles PWM speed control and tachome...
Delivered by Tue 17 Nov
Multifunction DHT11 LM35 Temperature Humidity Easy Module Shield for Arduino UNO
SKU: EC-ARS03218S | Brand: Elecrow
The board is designed for beginners in Arduino, with various components available that makes you build more than 10 projects easily. You won’t have to solder or connect anything at all, just plug it in a shield and st...
Delivered by Mon 26 Oct
M5StickC ENV Hat (DHT12, BMP280, BMM150)
SKU: M5-U053 | Brand: Little Bird
Description Hat ENV It is able to detect the temperature, humidity, air pressure and magnetic field. This product relates via I2C protocol which allows you to obtain 4 types of environment data thru just 2pins...
Delivered by Mon 26 Oct
PM2.5 Air Quality Kit (PMSA003 + SHT20)
SKU: M5-K023 | Brand: Little Bird
The PM2.5 Air Quality Kit combines a PMSA003 laser particulate sensor with an SHT20 temperature and humidity sensor in a single M5Stack-compatible module. It measures ambient particulate concentration, temperature, an...
Delivered by Mon 26 Oct
SparkFun Atmospheric Sensor Breakout - BME280 (Qwiic)
SKU: SF-SEN-15440 | Brand: SparkFun
The BME280 Atmospheric Sensor Breakout measures barometric pressure, relative humidity, and temperature from a single compact board. With both Qwiic (I2C) and 0.1″ header connections, it integrates easily into Arduino...
Delivered by Mon 26 Oct
Octopus Rain/Steam Sensor
SKU: EF-EF04024 | Brand: ElecFreaks
This is a Rain/steam sensor from ElecFreaks. This steam sensor can be connected to the Arduino IO Expansion shield directly. The output voltage will increase when the humidity of the sensor surface goes up.You even co...
Delivered by Mon 26 Oct
Humidity and Temperature Sensor Module
SKU: FT-HUMID | Brand: Freetronics
Measure temperature and relative humidity with this simple, Arduino-compatible sensor module based on the DHT22. With just three connections (GND, power, and data), you can read both temperature and humidity from a si...
Delivered by Mon 26 Oct
Platinum RTD Sensor - PT1000 - 3 Wire 1 meter long
SKU: AF-3984 | Brand: Adafruit
For precision temperature sensing, nothing beats a Platinum RTD. Resistance temperature detectors (RTDs) are temperature sensors that contain a resistor that changes resistance value as its temperature changes, bas...
Delivered by Mon 26 Oct
Alcohol sensor for Arduino
SKU: LB-LR0205 | Brand: Little Bird
An alcohol sensor module for Arduino with both digital (TTL) and analog output. It detects alcohol vapour in the 10–1000 PPM range, with analog output voltage increasing proportionally with concentration. The module a...
Delivered by Mon 26 Oct