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.
Octopus LM35 Analog Temperature Brick
SKU: EF-EF04070 | Brand: ElecFreaks
The Octopus LM35 Analog Temperature Brick is a plug-and-play temperature sensor module based on the TI LM35D precision centigrade temperature sensor. The LM35 outputs a voltage linearly proportional to temperature (10...
Delivered by Thu 2 Jul
Gravity: IIC Ozone Sensor (0-10ppm)
SKU: DF-SEN0321 | Brand: DFRobot
The Gravity IIC Ozone Sensor measures ozone (O₃) concentration from 0 to 10 ppm with 10 ppb resolution using an electrochemical sensing element. Factory-calibrated for accurate readings out of the box, it connects via...
Delivered by Thu 2 Jul
Adafruit TMP235 - Plug-and-Play STEMMA Analog Temperature Sensor - TMP235
SKU: AF-4686 | Brand: Adafruit
The Adafruit TMP235 is a plug-and-play analog temperature sensor with a 3-pin JST PH (STEMMA) connector. Unlike I2C sensors, this one outputs a simple analog voltage proportional to temperature — just connect it to an...
Delivered by Mon 13 Jul
Adafruit LPS22 Pressure Sensor - STEMMA QT / Qwiic - LPS22HB
SKU: AF-4633 | Brand: Adafruit
The Adafruit LPS22 Pressure Sensor Breakout features the ST LPS22HB — a tiny absolute barometric pressure sensor capable of measuring atmospheric pressure from 260 to 1260 hPa. Use it for weather monitoring, altitude ...
Delivered by Mon 13 Jul
SparkFun Qwiic Thermocouple Amplifier - MCP9600 (PCC Connector)
SKU: SF-SEN-16294 | 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 Thu 2 Jul
SparkFun Digital Temperature Sensor - TMP102 (Qwiic)
SKU: SF-SEN-16304 | Brand: SparkFun
The SparkFun TMP102 Qwiic breakout provides accurate digital temperature readings over I2C with minimal wiring. Based on the Texas Instruments TMP102, the sensor delivers 0.0625 °C resolution and ±0.5 °C accuracy, com...
Delivered by Thu 2 Jul
SparkFun Humidity Sensor Breakout - SHTC3 (Qwiic)
SKU: SF-SEN-16467 | Brand: SparkFun
Looking to keep a log of the climate in your greenhouse, create a humidor control system or want to track temperature and humidity data for a weather station project? The SparkFun SHTC3 Humidity Sensor may be the perf...
Delivered by Thu 2 Jul
Adafruit LPS33HW Water Resistant Pressure Sensor - STEMMA QT
SKU: AF-4414 | Brand: Adafruit
The Adafruit LPS33HW is a water-resistant barometric pressure sensor designed for use in harsh environments. The sensing element is housed in a ceramic package with waterproof gel protection, making it suitable for lo...
Delivered by Mon 13 Jul
Octopus DS18B20 Digital Temperature Brick
SKU: EF-EF04042 | Brand: ElecFreaks
The Octopus DS18B20 Digital Temperature Brick uses the DS18B20 1-Wire digital temperature sensor from Maxim IC to deliver accurate readings from −55 °C to +125 °C with ±0.5 °C accuracy. Each sensor has a unique 64-bit...
Delivered by Thu 2 Jul
Octopus Smoke Sensor MQ-2 Brick OBMQ2
SKU: EF-EF04029 | Brand: ElecFreaks
An analogue gas sensor module based on the MQ-2 sensor, part of the Octopus Electronic Bricks series for plug-and-play integration with Arduino and compatible boards. Detects a wide range of combustible gases and smok...
Delivered by Thu 2 Jul
M5StickC Yun Hat(SH20,BMP280,SK6812)
SKU: M5-U070 | Brand: Little Bird
The M5StickC Yun HAT is a cloud-shaped multi-sensor environmental monitoring accessory designed to mount on the M5StickC via the top socket. It integrates a temperature and humidity sensor (SHT20), barometric pressure...
Delivered by Tue 23 Jun
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
TS01 Non-contact IR Temperature Sensor 0-3V
SKU: DF-SEN0256 | Brand: DFRobot
The DFRobot TS01 is a non-contact infrared temperature sensor that measures surface temperature via infrared radiation. The all-metal IP65 housing provides protection against impact, water, and dust, making it suitabl...
Delivered by Thu 2 Jul
TS01 Non-contact IR Temperature Sensor 4-20mA
SKU: DF-SEN0264 | Brand: DFRobot
DFRobot TS01 IR temperature sensor is a non-contact thermal sensor, which can be used to measure the infrared intensity of the object so as to calculate its surface temperature without touching. The built-in temperatu...
Delivered by Thu 2 Jul
Klimate Board for the BBC micro:bit
SKU: KI-5636 | Brand: Kitronik
This RTC & Klimate board is a Real Time Clock (RTC) and environmental sensor (BME280) interface for the BBC microbit. The environmental sensor will give the ability to measure temperature, barometric pressure an...
Delivered by Tue 23 Jun
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
Adafruit HTU21D-F Temperature Humidity Sensor Breakout Board - Fully Assembled
SKU: AF-3515 | 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 Tue 23 Jun
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
ADT7410 High Accuracy I2C Temperature Sensor Breakout Board
SKU: AF-4089 | Brand: Adafruit
Get precise temperature readings with the ADT7410 High Accuracy I2C Temperature Sensor from Analog Devices. Featuring 16-bit resolution (0.0078°C) and ±0.5°C accuracy, this breakout delivers reliable measurements over...
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