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.
Adafruit MLX90640 IR Thermal Camera Breakout - 55 Degree
SKU: AF-4407 | Brand: Adafruit
The Adafruit MLX90640 IR Thermal Camera Breakout features a 24×32 array of infrared thermal sensors that returns 768 individual temperature readings over I2C. It's an affordable way to add heat-vision to any microcont...
Delivered by Mon 13 Jul
Adafruit MCP9600 I2C Thermocouple Amplifier - K, J, T, N, S, E, B and R Type T
SKU: AF-4101 | Brand: Adafruit
The Adafruit MCP9600 I2C Thermocouple Amplifier handles all the analogue complexity of thermocouple measurement for you. Simply connect your thermocouple, wire up I2C, and read accurate temperature data from virtually...
Delivered by Mon 13 Jul
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 Tue 23 Jun
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 Tue 23 Jun
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 Thu 2 Jul
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 Tue 23 Jun
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 Thu 2 Jul
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 Tue 23 Jun
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 Mon 13 Jul
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 Tue 23 Jun
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 Tue 23 Jun
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 Tue 23 Jun
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 Tue 23 Jun
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 Tue 23 Jun
10K Precision Epoxy Thermistor [3950 NTC]
SKU: AF-372 | Brand: Adafruit
An epoxy-coated precision NTC thermistor with a 10kΩ resistance at 25°C and ±1% accuracy. The resistance decreases as temperature rises and increases as it cools, making it straightforward to measure temperature with ...
Delivered by Tue 23 Jun
Platinum RTD Sensor - PT100 - 3 Wire 1 meter long
SKU: AF-3290 | Brand: Adafruit
A platinum resistance temperature detector (RTD) with a 100 Ω resistance at 0°C, offering superior accuracy and long-term stability compared to thermocouples and thermistors. PT100 sensors are widely used in laborator...
Delivered by Tue 23 Jun
Adafruit SHT41 Trinkey - USB Temperature and Humidity Sensor
SKU: AF-5912 | Brand: Adafruit
The Adafruit SHT41 Trinkey is a tiny USB A device that combines an ATSAMD21 microcontroller with a Sensirion SHT41 temperature and humidity sensor. Simply plug it into any USB A port on your computer and start reading...
Delivered by Mon 13 Jul
Gravity: H2S Sensor (Calibrated) - I2C & UART
SKU: DF-SEN0467 | Brand: DFRobot
This is a sensor that detects hydrogen sulfide 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
Fermion: MEMS Smoke Gas Detection Sensor (Breakout, 10-1000ppm)
SKU: DF-SEN0570 | Brand: DFRobot
Fermion: MEMS Smoke Gas Detection Sensor employs state-of-the-art microelectromechanical system (MEMS) technology, endowing the sensor with compact dimensions (13x13x2.5mm), low power consumption (<20mA), minimal heat...
Delivered by Tue 23 Jun
Fermion: MEMS Odor Smell Gas Detection Sensor (Breakout, 0.5-50ppm)
SKU: DF-SEN0571 | Brand: DFRobot
Fermion: MEMS Odor Smell Gas Detection Sensor employs state-of-the-art microelectromechanical system (MEMS) technology, endowing the sensor with compact dimensions (13x13x2.5mm), low power consumption (<20mA), minimal...
Delivered by Thu 2 Jul