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.
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
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
RS485 Wind Direction Transmitter
SKU: DF-SEN0482 | Brand: DFRobot
The wind direction sensor is a professional meteorological instrument used to measure horizontal wind direction. It integrates a hall sensor inside. The shell and weather vane is made of aluminum alloy material and us...
Delivered by Fri 19 Jun
Industrial RS485 Opto-Isolated Hub
SKU: DF-FIT0821 | Brand: DFRobot
A 4-port RS-485 bus hub with optical isolation and surge protection, designed for industrial environments with complex electromagnetic interference. Each port is independently opto-isolated at 2500 V and protected aga...
Delivered by Fri 19 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
RS485 MODBUS-RTU Soil NPK Measure Sensor for for Efficient Agricultural (IP68, 5-30V)
SKU: DF-SEN0605 | Brand: DFRobot
##Introduction The Soil Sensor is designed to measure and monitor the nitrogen (N), phosphorus (P), and potassium (K) levels in soil, enabling the optimization of soil fertility and creating ideal conditions for plant...
Delivered by Fri 19 Jun
RS485 Wind Speed Transmitter
SKU: DF-SEN0483 | Brand: DFRobot
This wind speed sensor is a professional meteorological instrument used to measure horizontal wind speed within 0~32.4m/s. It integrates a hall sensor inside. The shell and wind cups are made of aluminum alloy materia...
Delivered by Fri 19 Jun
8-Channel Modbus RTU Latching Relay Module (C) with RS485, Rail-Mounted
SKU: WS-30460 | Brand: Waveshare
The 8-Channel Modbus RTU Latching Relay Module (C) is an industrial-grade relay controller with RS485 communication, designed for reliable automation in demanding environments. The latching relays retain their state a...
Delivered by Wed 1 Jul
RS485 Ultraviolet (UV) Intensity Measure Sensor (290-390nm, UVA, UVB)
SKU: DF-SEN0642 | Brand: DFRobot
An industrial-grade RS485 UV sensor that measures ultraviolet intensity (0–15 mW/cm²) and UV index (0–15) across the 290–390 nm wavelength range, covering both UVA and UVB bands. It communicates via the Modbus-RTU pro...
Delivered by Fri 19 Jun
RS485 4-in-1 Soil Moisture, Temperature, pH & EC Sensor for Smart Agriculture (IP68, 5-30V)
SKU: DF-SEN0604 | Brand: DFRobot
##Introduction The 4-in-1 soil sensor is designed to monitor key soil parameters: temperature, humidity, electrical conductivity (EC), and pH. With its wide voltage power supply range of 5-30V and RS485 data transmiss...
Delivered by Fri 19 Jun
RS485 Soil pH, Moisture, and Temperature Monitoring Sensor in Soil-less Cultivation (Anti-corrosion, 5-30V)
SKU: DF-SEN0602 | Brand: DFRobot
##Introduction This RS485 soil temperature, humidity, and pH sensor supports a broad voltage power supply range (5-30V) and communicates data through the reliable MODBUS-RTU protocol, allowing for seamless integration...
Delivered by Fri 19 Jun
RS485 Soil Temperature, Moisture, and EC Sensor for Precision Irrigation and Climate Control in Greenhouses (IP68, 5-30V)
SKU: DF-SEN0601 | Brand: DFRobot
The RS485 Soil Sensor provides real-time monitoring of soil temperature, moisture, and electrical conductivity (EC) in a single rugged probe. It communicates via the MODBUS-RTU protocol over RS485, making it easy to i...
Delivered by Fri 19 Jun
RS485 MODBUS-RTU Soil Temperature & Moisture Sensor for Automatic Irrigation System (IP68, Compatible with Arduino)
SKU: DF-SEN0600 | Brand: DFRobot
##Introduction The RS485 Soil Sensor is designed for real-time monitoring of soil temperature and humidity, ideal for large-scale agricultural applications, greenhouse management, and fruit orchards' automatic irrigat...
Delivered by Fri 19 Jun
TFmini-i LiDAR Laser Range Sensor (12m)
SKU: DF-SEN0505 | Brand: DFRobot
The TFmini-i is an industrial-grade single-point LiDAR sensor with a maximum detection range of 12 m. It uses Pulse Time of Flight (PTOF) measurement — emitting a narrow laser pulse and calculating the distance based ...
Delivered by Fri 19 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
