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 PCT2075 Temperature Sensor - STEMMA QT / Qwiic
SKU: AF-4369 | Brand: Adafruit
The Adafruit PCT2075 Temperature Sensor is a precise, affordable I2C temperature sensor and a drop-in replacement for the classic LM75. With an 11-bit ADC (compared to the LM75's 9-bit), it delivers finer temperature ...
Delivered by Mon 13 Jul
Octopus Dust Sensor Detector Module with Sharp GP2Y1010AU0F
SKU: EF-EF11083 | Brand: ElecFreaks
The Octopus Dust Sensor Module features the Sharp GP2Y1010AU0F optical dust sensor, capable of detecting fine particles with a diameter as small as 0.8 μm. It uses an infrared LED and phototransistor to measure dust d...
Delivered by Thu 2 Jul
High Temp Waterproof DS18B20 Digital Temperature Sensor - 3m long
SKU: AF-3846 | Brand: Adafruit
This is a pre-wired and waterproofed version of the DS18B20 sensor made with a PTFE wire cable. Handy for when you need to measure something far away, or in wet conditions. This sensor is a little more expensive th...
Delivered by Mon 13 Jul
MPL115A2 - I2C Barometric Pressure/Temperature Sensor
SKU: AF-992 | Brand: Adafruit
This pressure sensor from Freescale is a great low-cost sensing solution for measuring barometric pressure. At 1.5 hPa resolution, it's not as precise as our favorite pressure sensor, the BMx280 series, which has u...
Delivered by Mon 13 Jul
CO₂ Humidity and Temperature Sensor - SCD30
SKU: SF-SEN-15112 | Brand: SparkFun
The SCD30 from Sensirion is a high quality Nondispersive Infrared (NDIR) based CO₂ sensor capable of detecting 400 to 10000ppm with an accuracy of ±(30ppm+3%). In order to improve accuracy the SCD30 has temperature an...
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
Sharp GP2Y1010AU0F Compact optical Dust Sensor
SKU: DF-SEN0144 | Brand: DFRobot
The Sharp GP2Y1010AU0F is a compact optical dust sensor that uses an internal infrared LED and phototransistor arranged diagonally to detect fine particles in the air. The sensor outputs an analog voltage proportional...
Delivered by Thu 2 Jul
Digital Temperature humidity sensor (With Stainless Steel Probe)
SKU: DF-SEN0148 | Brand: DFRobot
This is an anti-rust, robust and precise SHT10 sensor, which can master enterprise-class and industrial-level applications. It can be applied in various fields: telepoint base stations, electronic control cabinet, pr...
Delivered by Thu 2 Jul
Dust Sensor Adapter
SKU: DF-DFR0280 | Brand: DFRobot
Sharp GP2Y1010AU Dust Sensor requires some wiring on the breadboard and a list of components to make it Arduino compatible. This has turned down several people due to the thin wires of the sharp sensor making it ...
Delivered by Tue 23 Jun
Light and temperature data-logger pack
SKU: AF-249 | Brand: Adafruit
This pack includes everything you need to build a light and temperature data logger with an Arduino. The Adafruit data logger shield records sensor readings to an SD card with real-time timestamps, while the included ...
Delivered by Mon 13 Jul
SparkFun Digital Temperature Sensor Breakout - TMP102
SKU: SF-SEN-13314 | Brand: SparkFun
The TMP102 is an easy-to-use digital temperature sensor from Texas Instruments. The TMP102 breakout allows you to easily incorporate the digital temperature sensor into your project. While some temperature sensors use...
Delivered by Thu 2 Jul
Adafruit MiCS5524 CO, Alcohol and VOC Gas Sensor Breakout
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...
Delivered by Mon 13 Jul
Adafruit HTU21D-F Temperature Humidity Sensor Breakout Board
SKU: AF-1899 | Brand: Adafruit
The Adafruit HTU21D-F is an accurate I²C digital temperature and humidity sensor breakout board. With typical humidity accuracy of ±2% (optimised for 5–95% RH) and temperature accuracy of ±1°C across -30 to 90°C, it's...
Delivered by Mon 13 Jul
Optical Dust Sensor - GP2Y1010AU0F
SKU: SF-COM-09689 | Brand: SparkFun
Sharp’s GP2Y1010AU0F is an optical air quality sensor, designed to sense dust particles. An infrared emitting diode and a phototransistor are diagonally arranged into this device, to allow it to detect the reflecte...
Delivered by Thu 2 Jul
Carbon Monoxide Sensor - MQ-7
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...
Delivered by Thu 2 Jul
Gravity: STCC4 True Carbon Dioxide (CO2) Sensor (3-in-1 Air Quality Monitoring, 400 ~ 5000ppm)
SKU: DF-SEN0678 | Brand: DFRobot
This Gravity air quality module uses Sensirion’s STCC4 gas sensing chip to directly measure carbon dioxide with the thermal conductivity measurement principle. It is designed for compact, cost-effective indoor monitor...
Delivered by Thu 2 Jul
Gravity: CT1780 1-Wire K-Type Thermocouple Amplifier (-270℃ to +1372℃ Temp Range)
SKU: DF-SEN0656 | Brand: DFRobot
The CT1780 is a cold-junction compensated amplifier for K-Type thermocouples, designed to make extreme temperature measurement easier to add to microcontroller projects. It digitises the tiny thermocouple signal and p...
Delivered by Thu 2 Jul
Fermion BMV080 Fanless PM1/PM2.5/PM10 Air Quality Sensor
SKU: DF-SEN0663 | Brand: DFRobot
This ultra-compact particulate matter sensor breakout is built around the Bosch BMV080 sensing unit, using laser-based light scattering with a fanless measurement principle. It can monitor PM1, PM2.5 and PM10 mass con...
Delivered by Thu 2 Jul
Fermion BMP581 Barometric Pressure & Temperature Sensor
SKU: DF-SEN0667 | Brand: DFRobot
This compact Fermion module is built around Bosch Sensortec’s BMP581 high-performance barometric pressure sensor chip. It measures pressure and temperature with high precision, offering ±0.3 hPa typical absolute press...
Delivered by Thu 2 Jul
Wind Vane
SKU: SF-SEN-28868 | Brand: SparkFun
This wind vane is used to indicate the direction from which the wind is blowing. Inside the vane are eight switches, each paired with a unique resistor, allowing a microcontroller to read direction based on the vane’s...
Delivered by Thu 2 Jul