Proximity & Distance
Proximity and distance sensors for every project — ultrasonic, IR, LiDAR, ToF, and capacitive types, all stocked in Australia. Whether you're building a robot, an obstacle-avoidance system, or a smart home trigger, you'll find the right sensor here.
Popular with makers, students, and engineers alike, these sensors suit Arduino, Raspberry Pi, and microcontroller projects at any skill level. From short-range gesture detection to 50m laser ranging, there's a solution for hobbyist, STEM, and professional applications.
Ultrasonic Distance Sensor HC-SR04
SKU: LB-LR0230 | Brand: Little Bird
The HC-SR04 is a widely used ultrasonic distance sensor that measures distances from 2cm to 500cm (approximately 5 metres) with 1cm resolution. It works by emitting a 40kHz ultrasonic pulse, then measuring the time it...
Delivered by Fri 12 Jun
Sharp Infrared distance sensor with line GP2Y0A41SK0F 4-30CM
SKU: LB-LR0214-20 | Brand: Little Bird
The GP2Y0A41SK0F is a short range Sharp analog distance sensor. The detection range is 1.5″ to 12″ (4 cm to 30 cm). The shorter range gives you higher resolution measurements, and the lower minimum detection distance ...
Delivered by Fri 12 Jun
5V IR Photoelectric Switch (4m)
SKU: DF-SEN0523 | Brand: DFRobot
This IR break-beam photoelectric switch detects objects by sending an invisible infrared beam from an emitter to a receiver. When a non-transparent object passes between the two and breaks the beam, the receiver outpu...
Delivered by Tue 23 Jun
Laser Detector module
SKU: LB-LS1177 | Brand: Little Bird
Laser Detector Module Want to set up your own laser tripwire? These little modules make it super simple. Just hook one up to your Arduino, line it up with a laser pointer, and you’ve got a working laser detection syst...
Delivered by Fri 12 Jun
Laser Ranging Sensor RS485 (4-400cm)
SKU: DF-SEN0492 | Brand: DFRobot
This laser range sensor can be used to detect objects in 4~400cm with ±2cm accuracy. With 3 measurement modes supported, it is well applicable to various detection scenarios like security gate detection, access contro...
Delivered by Tue 23 Jun
TF-Luna (ToF) Micro Single-point Ranging LiDAR
SKU: DF-SEN0340 | Brand: DFRobot
SPECIFICATION Distance Resolution: 1cm Frequency: 100Hz Ambient Light Resistance: 70klux Detecting Range: 0.2~8m Weight: <5g FoV: 2° Supply Voltage: 5V±0.1V Data Interface: UART/ I²C Accuracy: ±6cm@(0.2m-3m) DOCUMENTS...
Delivered by Tue 23 Jun
Maxbotix Ultrasonic Rangefinder - LV-EZ0 [LV-EZ0]
SKU: AF-979 | Brand: Adafruit
The LV-EZ0 from MaxBotix is a compact ultrasonic rangefinder providing short to long-range detection. It can detect objects from 0 to 254 inches (6.45 m) and provides calibrated range information from 6 inches out to ...
Delivered by Fri 12 Jun
Sharp GP2Y0A02YK0F Analog Distance Sensor 20-150cm
SKU: PL-1137 | Brand: Pololu
The GP2Y0A02 is the longest-range optical distance sensor we carry, featuring a detection range of 8″ to 60″ (20 cm to 150 cm). The high maximum detection distance makes this sensor a viable alternative to ...
Delivered by Fri 12 Jun
Sharp GP2Y0A21YK0F Analog Distance Sensor 10-80cm
SKU: PL-136 | Brand: Pololu
The Sharp GP2Y0A21YK0F is an infrared distance sensor that outputs an analogue voltage corresponding to the distance of the nearest object within its 10–80 cm detection range. Using IR triangulation, it provides relia...
Delivered by Fri 12 Jun
Learn to Solder - DIY Ultrasonic Ranging Electronic Kit
SKU: LB-LS6569 | Brand: Little Bird
A DIY soldering kit that builds into a functional ultrasonic distance meter. Using an HC-SR04 ultrasonic sensor, STC89C52 microcontroller, and 3-digit 7-segment display, this kit measures distances from 5cm to 4m with...
Delivered by Fri 12 Jun
HC-SR04 Ultrasonic Sensor Distance Measuring Module Ultra01+
SKU: EF-EF03085 | Brand: ElecFreaks
The HC-SR04 is a widely used ultrasonic distance sensor that provides non-contact measurement from 2 cm to 450 cm with up to 3 mm resolution. It uses a 40 kHz ultrasonic transducer pair — one transmitter and one recei...
Delivered by Fri 12 Jun
TFMini Plus - Micro LiDAR Module
SKU: SF-SEN-15179 | Brand: SparkFun
The TFMini Plus is a ToF (Time of Flight) LiDAR sensor capable of measuring the distance to an object as close as 10 centimeters (+/- 5cm up to 6m) and as far as 12 meters (+/-1% starting at 6m)! As with all LiDAR sen...
Delivered by Tue 23 Jun
Sharp GP2Y0A710K0F IR Range Sensor 100-550cm
SKU: LB-LR0157 | Brand: Little Bird
The Sharp GP2Y0A710K0F IR Range Sensor takes a continuous distance reading and reports the distance as an analog voltage with a distance range of 100cm to 550cm. The interface is 5-wire with power, ground and out...
Delivered by Fri 12 Jun
Sharp GP2Y0A21 IR Distance Sensor (10-80cm) For Arduino
SKU: DF-SEN0014 | Brand: DFRobot
The Sharp distance sensors are a popular choice for many projects that require accurate distance measurements. This IR sensor is more economical than sonar rangefinders, yet it provides much better performance than o...
Delivered by Fri 12 Jun
Infrared Proximity Sensor - Sharp GP2Y0A21YK
SKU: SF-SEN-00242 | Brand: SparkFun
The Sharp GP2Y0A21YK is an infrared proximity sensor with an analogue voltage output that varies with distance — from 3.1 V at 10 cm to 0.4 V at 80 cm. It uses an IR emitter and position-sensitive detector to measure ...
Delivered by Fri 12 Jun
SHARP GP2Y0A41SKOF Infrared Distance Sensor (4-30cm)
SKU: DF-SEN0143 | Brand: DFRobot
This Infrared Proximity Sensor made by Sharp (model: GP2Y0A41SKOF) has an analog output which varies from 3.1V (4cm) to 0.3V (30cm) with a supply voltage between 4.5 and 5.5V DC. This sensor is great for sensing obje...
Delivered by Fri 12 Jun
RPLiDAR S2 360° Laser Range Scanner-30m (5V)
SKU: DF-DFR1022 | Brand: DFRobot
DTOF Ranging MethodThanks to the DTOF (Direct Time-of-Flight) technology developed by SLAMTEC, RPLIDAR S2 guarantees consistent ranging resolution. Even in longer distance, the resolution always keeps the same. Also, ...
Delivered by Tue 23 Jun
RPLiDAR S2L 360 deg; Laser Range Scanner-18m (5V)
SKU: DF-DFR1023 | Brand: DFRobot
The RPLiDAR S2L is a 360° laser range scanner from SLAMTEC using Direct Time-of-Flight (DTOF) ranging technology. It delivers consistent resolution regardless of distance and can detect objects of virtually any materi...
Delivered by Tue 23 Jun
DTOF LD19 Laser LiDAR Sensor Kit (12m)
SKU: DF-SEN0547 | Brand: DFRobot
The LD19 is a compact 360° DTOF (Direct Time-of-Flight) LiDAR sensor with a ranging distance of up to 12 metres. It provides high-frequency environmental scanning for autonomous mapping, obstacle detection, and naviga...
Delivered by Tue 23 Jun
URM06 - UART Ultrasonic Sensor
SKU: DF-SEN0150 | Brand: DFRobot
Ultrasonic sensors emit ultrasonic pulses, and by measuring the time of ultrasonic pulse reaches the object and back to the transducer, the distance of sensor from the target object is calculated. They are widely used...
Delivered by Tue 23 Jun