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.
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
Thermocouple Type-K - Stainless Steel
SKU: SF-SEN-13715 | Brand: SparkFun
This is a stainless steel, Type-K Thermocouple probe. A thermocouple works by taking two wires made of dissimilar metals, connecting them at the two ends, and making a temperature gradient between one end and the othe...
Delivered by Wed 4 Nov
SparkFun Photoacoustic Spectroscopy CO2 Sensor - PASCO2V01 (Qwiic)
SKU: SF-SEN-22956 | Brand: SparkFun
The SparkFun Photoacoustic Spectroscopy CO2 Sensor features the Infineon XENSIV PAS CO2 (PASCO2V01) sensor, which delivers highly accurate CO2 measurements in direct parts-per-million (ppm) format. The photoacoustic s...
Delivered by Wed 4 Nov
SparkFun Environmental Sensor - BME688 (Qwiic)
SKU: SF-SEN-19096 | Brand: SparkFun
The SparkFun BME688 Environmental Sensor is a breakout that combines a gas scanning sensor with temperature, humidity, and barometric pressure sensing for a complete environmental sensor in a single package. The ga...
Delivered by Mon 26 Oct
Waterproof SMD DS18B20 Digital Temperature Sensor
SKU: DF-SEN0511 | Brand: DFRobot
This waterproof DS18B20 digital temperature sensor delivers accurate readings over a simple 1-Wire interface, requiring just a single data pin on your microcontroller. The sealed probe and silicone lead wire make it i...
Delivered by Wed 4 Nov
Adafruit TMP117 ±0.1°C High Accuracy I2C Temperature Sensor - STEMMA QT / Qwiic
SKU: AF-4821 | Brand: Adafruit
The Adafruit TMP117 is a high-accuracy I2C temperature sensor from Texas Instruments, offering 16-bit resolution (0.0078°C) and up to ±0.1°C accuracy across the most common temperature ranges. It's ideal for applicati...
Delivered by Tue 17 Nov
Adafruit SGP40 Air Quality Sensor Breakout - VOC Index - STEMMA QT / Qwiic
SKU: AF-4829 | Brand: Adafruit
The Adafruit SGP40 is a next-generation MOX (metal-oxide) gas sensor from Sensirion for indoor air quality monitoring. Unlike its predecessor the SGP30, the SGP40 outputs a raw signal that is processed through Sensiri...
Delivered by Mon 26 Oct
SparkFun Qwiic Thermocouple Amplifier - MCP9600 (Screw Terminals)
SKU: SF-SEN-16295 | Brand: SparkFun
The MCP9600 Breakout is a high accuracy Thermocouple Amplifier equipped with an I2C interface, accessed over our Qwiic system. Inside the chip are two temperature sensors, one for the thermocouple itself (the hot junc...
Delivered by Mon 26 Oct
Adafruit LPS35HW Water Resistant Pressure Sensor
SKU: AF-4258 | Brand: Adafruit
The Adafruit LPS35HW is a water-resistant barometric pressure and temperature sensor from ST. The sensing element is housed in a ceramic package with waterproof gel protection, making it safe to use in damp and humid ...
Delivered by Mon 26 Oct
Particulate Matter Sensor - SPS30
SKU: SF-SEN-15103 | Brand: SparkFun
The Sensirion SPS30 is a compact, high-quality optical particle sensor that uses laser scattering and Sensirion's innovative contamination-resistance technology for superior binning and particle measurement. It measur...
Delivered by Wed 4 Nov
Adafruit BMP280 I2C or SPI Barometric Pressure Altitude Sensor
SKU: AF-2651 | Brand: Adafruit
The BMP280 from Bosch is a precision barometric pressure and temperature sensor, and the next-generation upgrade to the BMP085/BMP180/BMP183 family. With support for both I2C and SPI communication, it offers flexibili...
Delivered by Mon 26 Oct
Thermocouple Type-K Glass Braid Insulated [K]
SKU: AF-270 | Brand: Adafruit
A Type-K thermocouple with fiberglass braid insulation, rated to 500°C — far beyond the ~200°C limit of standard vinyl-insulated thermocouples. The bare bead probe design is suited to measuring both air and surface te...
Delivered by Tue 17 Nov
Adafruit BMP585 Ported I2C / SPI Temperature and Pressure Sensor
SKU: AF-6413 | Brand: Adafruit
The BMP585 from Bosch is a ported barometric pressure and temperature sensor featuring a tube attachment point for differential or remote pressure measurements. It delivers exceptional precision with altitude noise as...
Delivered by Tue 17 Nov
Adafruit Sensirion SHT45 Precision Temp & Humidity with PTFE
SKU: AF-6174 | Brand: Adafruit
The Adafruit Sensirion SHT45 is the highest-accuracy sensor in the SHT4x family, delivering ±1.0% typical relative humidity accuracy and ±0.1 °C typical temperature accuracy. Featuring a PTFE membrane for protection a...
Delivered by Tue 17 Nov
AM2315C - Encased I2C Temperature/Humidity Sensor
SKU: AF-5182 | Brand: Adafruit
The AM2315C is an enclosed I2C temperature and humidity sensor featuring the modern AHT20 sensor inside a rugged housing with mounting bracket. It offers the same convenient form factor as the original AM2315 but with...
Delivered by Tue 17 Nov
BMP388 Digital Pressure Sensor Module
SKU: DF-SEN0371 | Brand: DFRobot
The BMP388 Digital Pressure Sensor Module is a high-accuracy barometric pressure and temperature breakout based on the Bosch BMP388. It offers significantly improved performance over its predecessors (BMP180, BMP280) ...
Delivered by Mon 26 Oct
Gravity: I2C Oxygen Sensor
SKU: DF-SEN0322 | Brand: DFRobot
The Gravity: I2C Oxygen Sensor is based on electrochemical principles and it can measure the ambient O2 concentration accurately and conveniently. With high anti-interference ability, high stablility and high sensitiv...
Delivered by Wed 4 Nov
TC01 Non-contact 16x4 Pixel Infrared Temperature Sensor
SKU: DF-SEN0254 | Brand: DFRobot
The TC01 is a non-contact infrared temperature sensor with a 16×4 pixel array, producing a 64-pixel thermal image. Housed in a waterproof, dustproof metal enclosure (IP65), it communicates via RS485 using the standard...
Delivered by Wed 4 Nov
SparkFun weather:bit - micro:bit Carrier Board (Qwiic)
SKU: SF-DEV-15837 | Brand: SparkFun
The SparkFun weather:bit is a fully loaded "carrier" board for the micro:bit that, when combined with the micro:bit, provides you with a fully functional weather station. With the weather:bit you will have acces...
Delivered by Mon 26 Oct
SparkFun Lightning Detector - AS3935
SKU: SF-SEN-15441 | Brand: SparkFun
The SparkFun Lightning Detector adds lightning detection to your next weather station to make sure you are aware of any potential hazardous weather heading your way. The AS3935 is capable of detecting lightning up to ...
Delivered by Wed 4 Nov