Sensors
Browse our extensive range of sensor modules and breakout boards, covering temperature, distance, motion, touch, liquid level, radar, infrared, and more. Whether you're building with Arduino, Raspberry Pi, or your own custom PCB, you'll find the right sensor for your project.
Popular with Australian makers, students, and engineers for robotics, home automation, environmental monitoring, and STEM education. Fast shipping Australia-wide from our local warehouse.
Gravity: NO2 Sensor (Calibrated) - I2C & UART
SKU: DF-SEN0471 | Brand: DFRobot
This is a sensor that detects nitrogen dioxide 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 Wed 24 Jun
Gravity: HCL Sensor (Calibrated) - I2C & UART
SKU: DF-SEN0474 | Brand: DFRobot
This is a sensor that detects hydrogen chloride 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 concentr...
Delivered by Wed 24 Jun
Gravity: CL2 Sensor (Calibrated) - I2C & UART
SKU: DF-SEN0468 | Brand: DFRobot
This is a sensor that detects chlorine 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 concentration of ...
Delivered by Wed 24 Jun
Gravity: O3 Sensor (Calibrated) - I2C & UART
SKU: DF-SEN0472 | Brand: DFRobot
This is a sensor that detects ozone 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 concentration of ozo...
Delivered by Wed 24 Jun
Gravity: PH3 Sensor (Calibrated) - I2C & UART
SKU: DF-SEN0476 | Brand: DFRobot
This is a sensor that detects phosphine 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 concentration of...
Delivered by Wed 24 Jun
Fermion: MEMS Gas Sensor - MiCS-5524 (Breakout)
SKU: DF-SEN0440 | Brand: DFRobot
A compact MEMS gas sensor breakout based on the MiCS-5524, capable of detecting concentrations of multiple gases including carbon monoxide (CO), methane (CH4), ethanol (C2H5OH), propane (C3H8), butane (C4H10), hydroge...
Delivered by Wed 24 Jun
Fermion: MEMS Gas Sensor - MiCS-2714 (Breakout)
SKU: DF-SEN0441 | Brand: DFRobot
This is a hydrogen and nitrogen oxide gas concentration sensor launched by DFRobot. The sensor uses MEMS technology to support gas concentration detection of NO, NO2 and H2. The matching sample code integrates the co...
Delivered by Wed 24 Jun
Dual Gas CO and CH4 Detection Sensor - MQ-9B
SKU: SF-SEN-17050 | Brand: SparkFun
The MQ-9B is a CO and CH₄ gas detection sensor form Winsen. The sensing material of the MQ-9B is SnO2, which has a low conductivity in clean air. It detects carbon monoxide (1.5V) by method of cycling high and low tem...
Delivered by Wed 24 Jun
Smoke Sensor - MQ-2
SKU: SF-SEN-17049 | Brand: SparkFun
The MQ-2 is a smoke and combustible gas sensor manufactured by Winsen. It detects flammable gases and smoke in a concentration range of 300–10,000 ppm, with particularly high sensitivity to propane and smoke. It's wid...
Delivered by Wed 24 Jun
Hydrogen Sulfide Gas Sensor - MQ-136
SKU: SF-SEN-17052 | Brand: SparkFun
The MQ-136 is a Hydrogen Sulfide detection sensor with a sensing range of 1 - 200ppm. The sensing element is SnO2, which has lower conductivity in clean air. When H₂S gas exists, the sensor’s conductivity gets higher ...
Delivered by Wed 24 Jun
Ammonia Gas Sensor - MQ-137
SKU: SF-SEN-17053 | Brand: SparkFun
The MQ-137 is an ammonia (NH3) gas sensor from Winsen, designed to detect ammonia concentrations in the air. The sensing element is tin dioxide (SnO2), which has lower conductivity in clean air and increases in conduc...
Delivered by Wed 24 Jun
Octopus MG811 CO2 Gas Sensor
SKU: EF-EF04100 | Brand: ElecFreaks
Octopus MG811 CO2 Gas Sensor is a CO2 electronic brick in our OCTOPUS series, the basic design for the outlook, PCB fixing holes and connections are the same with them.The higher the CO2 concentration is, the lower th...
Delivered by Wed 24 Jun
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 Wed 24 Jun
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 Wed 24 Jun
Carbon Monoxide Flammable Gas Sensor MQ-9
SKU: PL-1483 | Brand: Pololu
This semiconductor gas sensor detects the presence of Carbon Monoxide at concentrations from 10 to 1,000 ppm and combustible gas from 100 to 10,000 ppm. The sensor’s simple analog voltage interface requires ...
Delivered by Mon 15 Jun
Gravity: Arduino Alcohol Sensor (MQ3)
SKU: DF-SEN0128 | Brand: DFRobot
An analogue alcohol gas sensor based on the MQ-3 probe, designed for use with Arduino and other microcontrollers. The sensor outputs a voltage proportional to the concentration of alcohol vapour in the surrounding air...
Delivered by Mon 15 Jun
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 Fri 3 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 Wed 24 Jun
ZMOD4450 Refrigeration Air Quality Gas Sensor Module
SKU: SF-COM-21506 | Brand: SparkFun
The ZMOD4450 is a compact gas sensor module for detecting gases associated with food ripening or rotting. It is intended for refrigeration air quality (RAQ) applications such as food storage and shipping, including hu...
Delivered by Wed 24 Jun
Gravity: MEMS Gas Sensor (CO, Alcohol, NO2 & NH3) - I2C - MiCS-4514
SKU: DF-SEN0377 | Brand: DFRobot
This is a 3.3/5V compatible MEMS gas concentration sensor from DFRobot. This sensor supports the detection of various gas concentrations like CO, C2H5OH (Alcohol), H2, NO2, NH3, and integrates various gas c...
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