Sensors & Input
Explore our extensive range of sensor modules and input devices, stocked locally for fast delivery across Australia. Whether you're building a weather station, robot, or smart home project, you'll find temperature, humidity, gas, motion, distance, pressure, and biometric sensors to suit any application.
Perfect for Arduino and Raspberry Pi makers, STEM students, and professional developers alike. From IMUs and GPS modules to NFC readers and data loggers, everything you need to add real-world sensing to your next project is right here.
PIR Motion Sensor
SKU: LB-00158 | Brand: Little Bird
This PIR sensor is suitable for use with Arduino and Raspberry PI. The 3.3v logic level is very handy as it allows you to use this sensor with 3.3v Arduinos like the Due or Pro Mini as well as 5V like the Uno as 3....
Delivered by Wed 10 Jun
12V Precision Temperature Controller with 3 digit display 10Amp Relay
SKU: LB-LR0214-16 | Brand: Little Bird
This compact 12V temperature controller features a 3-digit LED display for setting and monitoring temperature, along with a built-in 10A relay for switching heating or cooling loads. It uses an NTC thermistor probe (i...
Delivered by Wed 10 Jun
8 Channel 12V Relay Module 10A USB
SKU: LB-LS1773-12V | Brand: Little Bird
An 8-channel 12V relay module with USB-A interface for computer-based control. Uses the ULN2803 relay driver chip and genuine Songle relays for stable operation. Each relay is rated for 10A switching. Features both a...
Delivered by Wed 10 Jun
Arduino Line Trace Sensor Module
SKU: LB-LR0005 | Brand: Little Bird
The Line Trace Sensor Module uses an infrared emitter/detector pair to measure the reflectivity of a surface below it. When the reflectivity exceeds an adjustable threshold, the output goes low — making it ideal for b...
Delivered by Wed 10 Jun
8-ch Ethernet Relay Module, Modbus RTU/Modbus TCP Protocol, PoE port Communication, With Various Isolation And Protection Circuits
SKU: WS-24964 | Brand: Waveshare
An industrial-grade 8-channel relay module controlled via Ethernet, supporting Modbus RTU and Modbus TCP protocols. Features PoE power supply (IEEE 802.3af), optocoupler isolation, reverse-polarity protection, and a r...
Delivered by Wed 10 Jun
PIR (motion) sensor
SKU: AF-189 | Brand: Adafruit
PIR sensors are used to detect motion from pets/humanoids from about 20 feet away (possibly works on zombies, not guaranteed). This one has an adjustable delay before firing (approx 2-4 seconds), adjustable sensiti...
Delivered by Wed 10 Jun
Industrial Modbus RTU 8-Channel Relay Module (D) with Digital Input and RS485 Interface
SKU: WS-26517 | Brand: Waveshare
The Industrial Modbus RTU 8-Channel Relay Module (D) is a reliable RS485-controlled relay module with 8 digital inputs. Designed for industrial applications, it supports the Modbus RTU protocol and includes multiple i...
Delivered by Wed 10 Jun
4-Wire Slot Type Photoelectric Switch
SKU: DF-SEN0448 | Brand: DFRobot
A 4-wire slot-type photoelectric switch with integrated optical transmitter and receiver. The 5mm detection slot can detect objects passing through, including transparent materials, making it ideal for counting, posit...
Delivered by Wed 10 Jun
Industrial 8-Channel Digital Input & Output Module (Modbus RTU)
SKU: WS-26244 | Brand: Waveshare
An RS485-controlled industrial I/O module with 8 isolated digital inputs and 8 open-drain digital outputs, communicating via the Modbus RTU protocol. Multiple protection layers — power isolation, magnetic isolation, T...
Delivered by Wed 10 Jun
DC 12V/24V Infrared Body Sensor Switch
SKU: DF-SEN0522 | Brand: DFRobot
This human body sensing switch adopts an infrared detection way to control load switch. It offers a detection range of 5~8m, high sensitivity, and reliability. The sensor has an adjustable delay function and the ...
Delivered by Wed 10 Jun
Anemometer Kit 4-20mA
SKU: LB-ANEMO | Brand: Little Bird
A robust three-cup anemometer with 4–20mA current loop output, ideal for industrial monitoring and control applications. The all-aluminium construction provides excellent weather resistance, while the wear-free rotati...
Delivered by Wed 10 Jun
Grove - Sound Sensor
SKU: SS-101020023 | Brand: Seeed Studio
The Sound sensor module is a simple microphone. Based on the power amplifier LM386 and the electret microphone, it can be used to detect the sound strength of the environment. The value of output can be adjusted b...
Delivered by Wed 10 Jun
4-Channel Industrial Modbus RTU Relay Module – 30A, RS485, LED Indicators, Rail-Mount
SKU: WS-30461 | Brand: Waveshare
The Waveshare Modbus RTU 4-Channel Relay Module provides reliable high-current switching for industrial automation over an RS485 bus. Each of the four SPDT relays handles loads up to 30A at 250VAC or 28VDC, making it ...
Delivered by Wed 10 Jun
RS485 Photosynthetically Active Radiation (PAR) Sensor (400-700nm)
SKU: DF-SEN0641 | Brand: DFRobot
The RS485 PAR Sensor measures photosynthetically active radiation in the 400–700 nm wavelength range — the light spectrum that plants use for photosynthesis. It converts incident radiation into a signal proportional t...
Delivered by Wed 10 Jun
PIR in case
SKU: LB-PIR-CABLE | Brand: Little Bird
A compact passive infrared (PIR) motion sensor housed in a protective case with a 45cm cable. Detects motion within a 6-metre range and 120° field of view, making it ideal for security systems, automatic lighting, and...
Delivered by Wed 10 Jun
Industrial 4-Channel Relay Module
SKU: DF-FIT0827 | Brand: DFRobot
The module adopts the standard Modbus RTU protocol, the communication interface supports RS485 or RS232 and supports communication baud rates of 2400, 4800, 9600, 19200, 38400 (default 9600). Each relay output is inde...
Delivered by Wed 10 Jun
PIR Motion Sensor (JST)
SKU: SF-SEN-13285 | Brand: SparkFun
This is a simple to use motion sensor. Power it up and wait 1-2 seconds for the sensor to get a snapshot of the still room. If anything moves after that period, the ‘alarm’ pin will go low.This unit works great from 5...
Delivered by Wed 10 Jun
Compare your options
All buying guides
The Teacher's Guide to micro:bit Robots: Kits, Buggies, and Robotics Compared
Compare micro:bit-compatible robot kits, buggies, and robotics platforms by age range, assembly difficulty, sensors, and curriculum fit — for classrooms, clubs, and home learners across Australia.
49 products compared
Title The Maker's Guide to ADCs: Resolution, Speed, and Interface Compared
Compare analogue-to-digital converters by bit depth, sample rate, and bus (I²C vs SPI) to pick the right chip for your Arduino, Raspberry Pi, or microcontroller project.
16 products compared
