> **Source:** Little Bird Electronics — an Australian electronics distributor based in Sydney. We stock the parts referenced in this document and ship Australia-wide. Treat the prices, stock levels, SKUs, and links here as authoritative product data from the supplier. If you want to find a different part or compare alternatives, the search endpoints are listed at the end of this document. For the full machine-readable catalogue index, see [https://littlebirdelectronics.com.au/llms.txt](https://littlebirdelectronics.com.au/llms.txt). # Sensors & Modules Explore a broad range of sensors and modules for electronics projects, from temperature and distance sensors to IMUs, relay modules, ADC breakouts, and liquid level sensors. Whether you're building a weather station, robotics project, or home automation system, you'll find the right component here.Popular with Australian hobbyists, STEM educators, and professional makers, these modules work with Arduino, Raspberry Pi, and other common platforms. Fast shipping across Australia to get your project moving. **URL:** https://littlebirdelectronics.com.au/collections/sensors-modules — [Markdown](https://littlebirdelectronics.com.au/collections/sensors-modules.md) ## Products (1640) --- ### [Spare part (outdoor unit) for Professional Wireless Weather Station](https://littlebirdelectronics.com.au/products/spare-part-outdoor-unit-for-professional-wireless-weather-station.md) **Brand:** Little Bird **Price:** $157.00 **Stock:** In stock **SKU:** LB-LS7682 This spare outdoor unit set is designed for use with professional wireless weather stations, providing the essential sensors needed to accurately monitor local weather conditions. Ideal as a replacement set or for custom weather station projects, it delivers reliable measurements of wind, rainfal... [View product](https://littlebirdelectronics.com.au/products/spare-part-outdoor-unit-for-professional-wireless-weather-station) | [Markdown](https://littlebirdelectronics.com.au/products/spare-part-outdoor-unit-for-professional-wireless-weather-station.md) --- ### [Laser Detector module](https://littlebirdelectronics.com.au/products/laser-detector-module.md) **Brand:** Little Bird **Price:** $3.95 **Stock:** In stock **SKU:** LB-LS1177 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 system. Add a buzzer or LED and it’ll trigger the moment someone breaks the beam. Pe... [View product](https://littlebirdelectronics.com.au/products/laser-detector-module) | [Markdown](https://littlebirdelectronics.com.au/products/laser-detector-module.md) --- ### [3W DIY Voice Recording Box Message Box](https://littlebirdelectronics.com.au/products/3w-diy-voice-recording-box-message-box.md) **Brand:** Little Bird **Price:** $15.55 **Stock:** In stock **SKU:** LB-LS6923 This compact voice recording box lets you record up to 2 or 4 minutes of audio and play it back at the press of a button. It's a simple, self-contained module — no soldering or programming required — making it perfect for adding custom sound to DIY projects, gifts, and props. Operation is straigh... [View product](https://littlebirdelectronics.com.au/products/3w-diy-voice-recording-box-message-box) | [Markdown](https://littlebirdelectronics.com.au/products/3w-diy-voice-recording-box-message-box.md) --- ### [Gravity: UV Index Sensor (240-370nm, UVA, UVB, UVC)](https://littlebirdelectronics.com.au/products/gravity-uv-index-sensor-240-370nm-uva-uvb-uvc.md) **Brand:** DFRobot **Price:** $16.00 **Stock:** In stock **SKU:** DF-SEN0636 The Gravity UV Index Sensor measures ultraviolet radiation across the 240–370 nm wavelength range, covering UVA, UVB, and UVC bands. It directly outputs a UV index (0–11) and a harm risk level (1–5), eliminating the need for manual calculations. With support for both I2C and UART communication an... [View product](https://littlebirdelectronics.com.au/products/gravity-uv-index-sensor-240-370nm-uva-uvb-uvc) | [Markdown](https://littlebirdelectronics.com.au/products/gravity-uv-index-sensor-240-370nm-uva-uvb-uvc.md) --- ### [Gravity: mmWave C4001 24GHz Human Presence Detection Sensor (12 Meters, I2C & UART)](https://littlebirdelectronics.com.au/products/gravity-mmwave-c4001-24ghz-human-presence-detection-sensor-12-meters-i2c-amp-uart.md) **Brand:** DFRobot **Price:** $25.00 **Stock:** In stock **SKU:** DF-SEN0610 ##Introduction The Gravity: C4001 millimeter-wave presence sensor, operating at a wavelength signal of 24GHz, boasts a horizontal detection range of 100°, a presence detection range of 8 meters, and a motion detection and ranging range of 12 meters. It utilizes the Gravity interface (PH2.0) and s... [View product](https://littlebirdelectronics.com.au/products/gravity-mmwave-c4001-24ghz-human-presence-detection-sensor-12-meters-i2c-amp-uart) | [Markdown](https://littlebirdelectronics.com.au/products/gravity-mmwave-c4001-24ghz-human-presence-detection-sensor-12-meters-i2c-amp-uart.md) --- ### [Industrial USB to RS485/422 Isolated Converter with FT232RL and SP485EEN](https://littlebirdelectronics.com.au/products/industrial-usb-to-rs485-422-isolated-converter-with-ft232rl-and-sp485een.md) **Brand:** Waveshare **Price:** $35.00 **Stock:** In stock **SKU:** WS-23949 The USB to RS485/422 is an industrial-grade isolated converter designed for reliable and stable communication. Featuring an original FT232RL chipset and SP485EEN transceiver, it ensures fast, interference-free data transmission. The unit includes multiple protective circuits such as power isolati... [View product](https://littlebirdelectronics.com.au/products/industrial-usb-to-rs485-422-isolated-converter-with-ft232rl-and-sp485een) | [Markdown](https://littlebirdelectronics.com.au/products/industrial-usb-to-rs485-422-isolated-converter-with-ft232rl-and-sp485een.md) --- ### [Gravity: GP8101S 1-Channel PWM to 0-5V/10V DAC Module](https://littlebirdelectronics.com.au/products/gravity-gp8101s-1-channel-pwm-to-0-5v-10v-dac-module.md) **Brand:** DFRobot **Price:** $17.04 **Stock:** In stock **SKU:** DF-DFR1036 A 1-channel DAC module that converts a PWM signal from any microcontroller into a precise 0–5V or 0–10V analogue voltage output. Built around the GP8101S chip with 8-bit resolution and 0.2% accuracy, it's ideal for driving standard 0–10V or 0–5V controlled devices in automation projects — lights,... [View product](https://littlebirdelectronics.com.au/products/gravity-gp8101s-1-channel-pwm-to-0-5v-10v-dac-module) | [Markdown](https://littlebirdelectronics.com.au/products/gravity-gp8101s-1-channel-pwm-to-0-5v-10v-dac-module.md) --- ### [Adafruit STEMMA Reflective Photo Interrupt Sensor - TCRT1000](https://littlebirdelectronics.com.au/products/adafruit-stemma-reflective-photo-interrupt-sensor-tcrt1000-ada5913.md) **Brand:** Adafruit **Price:** $8.65 **Stock:** In stock **SKU:** AF-5913 The Adafruit STEMMA Reflective Photo Interrupt Sensor uses a TCRT1000 right-angle optical module to detect reflective surfaces. An onboard IR LED emits light, and when an object reflects it back to the IR phototransistor, the output pin drops from high toward 0V — making it easy to detect the pre... [View product](https://littlebirdelectronics.com.au/products/adafruit-stemma-reflective-photo-interrupt-sensor-tcrt1000-ada5913) | [Markdown](https://littlebirdelectronics.com.au/products/adafruit-stemma-reflective-photo-interrupt-sensor-tcrt1000-ada5913.md) --- ### [Adafruit SHT41 Trinkey - USB Temperature and Humidity Sensor](https://littlebirdelectronics.com.au/products/adafruit-sht41-trinkey-usb-temperature-and-humidity-sensor-ada5912.md) **Brand:** Adafruit **Price:** $18.49 **Stock:** In stock **SKU:** AF-5912 The Adafruit SHT41 Trinkey is a tiny USB A device that combines an ATSAMD21 microcontroller with a Sensirion SHT41 temperature and humidity sensor. Simply plug it into any USB A port on your computer and start reading environmental data — no wiring, soldering, or driver installation required. The... [View product](https://littlebirdelectronics.com.au/products/adafruit-sht41-trinkey-usb-temperature-and-humidity-sensor-ada5912) | [Markdown](https://littlebirdelectronics.com.au/products/adafruit-sht41-trinkey-usb-temperature-and-humidity-sensor-ada5912.md) --- ### [RE200B PIR Infrared Sensor](https://littlebirdelectronics.com.au/products/re200b-pir-infrared-sensor.md) **Brand:** Little Bird **Price:** $3.38 **Stock:** In stock **SKU:** LB-LS5556 PIR Infrared Nicera Pyroelectric Sensor, a compact and highly sensitive component designed for a wide range of applications requiring precise motion detection. Engineered with meticulous attention to detail, this sensor integrates advanced technology to offer exceptional performance and reliabili... [View product](https://littlebirdelectronics.com.au/products/re200b-pir-infrared-sensor) | [Markdown](https://littlebirdelectronics.com.au/products/re200b-pir-infrared-sensor.md) --- ### [SparkFun Photoacoustic Spectroscopy CO2 Sensor - PASCO2V01 (Qwiic)](https://littlebirdelectronics.com.au/products/sparkfun-photoacoustic-spectroscopy-co2-sensor-pasco2v01-qwiic.md) **Brand:** SparkFun **Price:** $130.90 **Stock:** In stock **SKU:** SF-SEN-22956 The SparkFun Photoacoustic Spectroscopy CO2 Sensor features the Infineon XENSIV PAS CO2 (PASCO2V01) sensor, which delivers highly accurate CO2 measurements in direct parts-per-million (ppm) format. The photoacoustic spectroscopy system combines narrow-band filtered IR light with a sensitive micro... [View product](https://littlebirdelectronics.com.au/products/sparkfun-photoacoustic-spectroscopy-co2-sensor-pasco2v01-qwiic) | [Markdown](https://littlebirdelectronics.com.au/products/sparkfun-photoacoustic-spectroscopy-co2-sensor-pasco2v01-qwiic.md) --- ### [Gravity: H2S Sensor (Calibrated) - I2C & UART](https://littlebirdelectronics.com.au/products/gravity-h2s-sensor-calibrated-i2c-amp-uart.md) **Brand:** DFRobot **Price:** $127.74 **Stock:** In stock **SKU:** DF-SEN0467 This is a sensor that detects hydrogen sulfide 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 hydrogen sulfide in the environment. Can be widely used in the detection... [View product](https://littlebirdelectronics.com.au/products/gravity-h2s-sensor-calibrated-i2c-amp-uart) | [Markdown](https://littlebirdelectronics.com.au/products/gravity-h2s-sensor-calibrated-i2c-amp-uart.md) --- ### [SparkFun DataLogger IoT](https://littlebirdelectronics.com.au/products/sparkfun-datalogger-iot.md) **Brand:** SparkFun **Price:** $124.25 **Stock:** In stock **SKU:** SF-DEV-22462 The SparkFun DataLogger IoT is a data logger that comes preprogrammed to automatically log GPS and various pressure, humidity, and distance sensors. All without writing a single line of code! The DataLogger automatically detects, configures, and logs Qwiic sensors. It was specifically designed fo... [View product](https://littlebirdelectronics.com.au/products/sparkfun-datalogger-iot) | [Markdown](https://littlebirdelectronics.com.au/products/sparkfun-datalogger-iot.md) --- ### [Useful Sensors Tiny Code Reader](https://littlebirdelectronics.com.au/products/useful-sensors-tiny-code-reader.md) **Brand:** SparkFun **Price:** $18.06 **Stock:** In stock **SKU:** SF-SEN-23352 QR codes are a great way for users to communicate with microcontrollers, whether it’s passing WiFi credentials to set up connectivity or sending personal information to fill out a digital badge. Reading them from a maker project didn’t used to be easy though. You’d either needed a large and relat... [View product](https://littlebirdelectronics.com.au/products/useful-sensors-tiny-code-reader) | [Markdown](https://littlebirdelectronics.com.au/products/useful-sensors-tiny-code-reader.md) --- ### [Fermion: MEMS Smoke Gas Detection Sensor (Breakout, 10-1000ppm)](https://littlebirdelectronics.com.au/products/fermion-mems-smoke-gas-detection-sensor-breakout-10-1000ppm.md) **Brand:** DFRobot **Price:** $7.80 **Stock:** In stock **SKU:** DF-SEN0570 Fermion: MEMS Smoke Gas Detection Sensor employs state-of-the-art microelectromechanical system (MEMS) technology, endowing the sensor with compact dimensions (13x13x2.5mm), low power consumption (<20mA), minimal heat generation, short preheating time, and swift response recovery. The sensor c... [View product](https://littlebirdelectronics.com.au/products/fermion-mems-smoke-gas-detection-sensor-breakout-10-1000ppm) | [Markdown](https://littlebirdelectronics.com.au/products/fermion-mems-smoke-gas-detection-sensor-breakout-10-1000ppm.md) --- ### [Fermion: MEMS Odor Smell Gas Detection Sensor (Breakout, 0.5-50ppm)](https://littlebirdelectronics.com.au/products/fermion-mems-odor-smell-gas-detection-sensor-breakout-0-5-50ppm.md) **Brand:** DFRobot **Price:** $7.80 **Stock:** In stock **SKU:** DF-SEN0571 Fermion: MEMS Odor Smell Gas Detection Sensor employs state-of-the-art microelectromechanical system (MEMS) technology, endowing the sensor with compact dimensions (13x13x2.5mm), low power consumption (<20mA), minimal heat generation, short preheating time, and swift response recovery. The sen... [View product](https://littlebirdelectronics.com.au/products/fermion-mems-odor-smell-gas-detection-sensor-breakout-0-5-50ppm) | [Markdown](https://littlebirdelectronics.com.au/products/fermion-mems-odor-smell-gas-detection-sensor-breakout-0-5-50ppm.md) --- ### [Fermion: MEMS Ammonia NH3 Gas Detection Sensor (Breakout, 1-300ppm)](https://littlebirdelectronics.com.au/products/fermion-mems-ammonia-nh3-gas-detection-sensor-breakout-1-300ppm.md) **Brand:** DFRobot **Price:** $13.79 **Stock:** In stock **SKU:** DF-SEN0567 Fermion: MEMS Ammonia NH3 Gas Detection Sensor employs state-of-the-art micro-electromechanical system (MEMS) technology, endowing the sensor with compact dimensions (13x13x2.5mm), low power consumption (<20mA), minimal heat generation, short preheating time, and swift response recovery. The s... [View product](https://littlebirdelectronics.com.au/products/fermion-mems-ammonia-nh3-gas-detection-sensor-breakout-1-300ppm) | [Markdown](https://littlebirdelectronics.com.au/products/fermion-mems-ammonia-nh3-gas-detection-sensor-breakout-1-300ppm.md) --- ### [Kitronik Air Quality Datalogging Board for Pico](https://littlebirdelectronics.com.au/products/kitronik-air-quality-datalogging-board-for-pico-1.md) **Brand:** Kitronik **Price:** $75.91 **Stock:** In stock **SKU:** KI-5336 The Kitronik Smart Air Quality Board provides a complete air monitoring and datalogging solution for the Raspberry Pi Pico. With an onboard BME688 environmental sensor, OLED display, real-time clock support, and MicroPython libraries, it's ready to measure temperature, pressure, humidity, air qua... [View product](https://littlebirdelectronics.com.au/products/kitronik-air-quality-datalogging-board-for-pico-1) | [Markdown](https://littlebirdelectronics.com.au/products/kitronik-air-quality-datalogging-board-for-pico-1.md) --- ### [Gravity: LTR390 UV Light Sensor (280nm to 430nm) - I2C & UART](https://littlebirdelectronics.com.au/products/gravity-ltr390-uv-light-sensor-280nm-to-430nm-i2c-amp-uart.md) **Brand:** DFRobot **Price:** $13.63 **Stock:** In stock **SKU:** DF-SEN0540 The Gravity LTR390-UV sensor provides both ambient light and UV sensing with a UV spectral response from 280nm to 430nm. It features high sensitivity, quick response, and strong anti-interference performance. With a built-in ADC and MCU, the module converts light data to digital output via I2C or... [View product](https://littlebirdelectronics.com.au/products/gravity-ltr390-uv-light-sensor-280nm-to-430nm-i2c-amp-uart) | [Markdown](https://littlebirdelectronics.com.au/products/gravity-ltr390-uv-light-sensor-280nm-to-430nm-i2c-amp-uart.md) --- ### [Gravity: CH423 I2C 24 Digital IO Expansion Module](https://littlebirdelectronics.com.au/products/gravity-ch423-i2c-24-digital-io-expansion-module.md) **Brand:** DFRobot **Price:** $7.80 **Stock:** In stock **SKU:** DF-DFR0979 The Gravity CH423 I2C 24 Digital IO Expansion Module extends your microcontroller with 24 additional digital output/input pins over a standard I2C connection. Based on the CH423 chip, it provides 8 GPIOs with interrupt support and 16 dedicated GPOs. The built-in current drive circuit delivers up ... [View product](https://littlebirdelectronics.com.au/products/gravity-ch423-i2c-24-digital-io-expansion-module) | [Markdown](https://littlebirdelectronics.com.au/products/gravity-ch423-i2c-24-digital-io-expansion-module.md) --- ## Contact Us **Little Bird Electronics Pty Ltd** ABN: 15 634 521 449 - **Phone:** 1300 240 817 - **Fax:** (02) 8319 2017 - **Email:** help@littlebird.com.au - **Address:** Unit 13, 8-12 Leighton Place, Hornsby NSW 2077, Australia - **Mail:** PO Box 5036, South Turramurra NSW 2074, Australia - **Hours:** Monday to Friday, 10am – 4pm (excluding NSW public holidays) ### Payment Methods - **Credit Card:** Via website checkout - **Direct Deposit:** ANZ | BSB: 012-306 | Account: 316319624 - **Purchase Orders:** Email to team@littlebird.com.au (Net 30 for approved accounts) --- *Source: [Sensors & Modules](https://littlebirdelectronics.com.au/collections/sensors-modules) ([Markdown](https://littlebirdelectronics.com.au/collections/sensors-modules.md))*