> **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). # All Products **Search:** "waterproof temperature probe DS18B20" 47 products available. **Page 2 of 3** — showing 21–40 of 47. Next page: https://littlebirdelectronics.com.au/products.md?page=3&q=waterproof+temperature+probe+DS18B20 --- ## [1m NTC Thermistor Temperature Sensor 10K 3470](https://littlebirdelectronics.com.au/products/100cm-ntc-thermistor-temperature-sensor-10k-3470) **Brand:** Little Bird **Price:** $3.50 **Stock:** In stock (Local: 105, Supplier: 250) **SKU:** LB-LS2696 A waterproof NTC thermistor temperature sensor with a 100cm (1 metre) cable and stainless steel probe. The 10KΩ resistance at 25°C and standard B-constant make it easy to read with an Arduino or other microcontroller ADC input — just use a voltage divider with a matching 10K resistor. Key Feature... [View product details](https://littlebirdelectronics.com.au/products/100cm-ntc-thermistor-temperature-sensor-10k-3470) | [Markdown version](https://littlebirdelectronics.com.au/products/100cm-ntc-thermistor-temperature-sensor-10k-3470.md) --- ## [DFRobot Industrial RS485 Blue-Green Algae Sensor](https://littlebirdelectronics.com.au/products/industrial-rs485-blue-green-algae-water-quality-sensor-pre-calibrated) **Brand:** DFRobot **Price:** $1,352.25 **Stock:** In stock (Local: 0, Supplier: 14) **SKU:** DF-SEN0714 This industrial-grade water quality probe measures blue-green algae, also known as cyanobacteria, in water using the fluorescence principle. The probe and housing are integrated into a single waterproof unit for straightforward deployment in rivers, lakes, ponds and other monitoring sites.It uses... [View product details](https://littlebirdelectronics.com.au/products/industrial-rs485-blue-green-algae-water-quality-sensor-pre-calibrated) | [Markdown version](https://littlebirdelectronics.com.au/products/industrial-rs485-blue-green-algae-water-quality-sensor-pre-calibrated.md) --- ## [Gravity: Analog Turbidity Sensor For Arduino](https://littlebirdelectronics.com.au/products/gravity-analog-turbidity-sensor-for-arduino) **Brand:** DFRobot **Price:** $17.25 **Stock:** In stock (Local: 9, Supplier: 524) **SKU:** DF-SEN0189 The Gravity Analog Turbidity Sensor measures water clarity by detecting the level of suspended particles. It works by measuring light transmittance and scattering rate, which change with the amount of total suspended solids (TSS) in the water. The sensor provides both analogue (0–4.5V) and digita... [View product details](https://littlebirdelectronics.com.au/products/gravity-analog-turbidity-sensor-for-arduino) | [Markdown version](https://littlebirdelectronics.com.au/products/gravity-analog-turbidity-sensor-for-arduino.md) --- ## [TC01 Non-contact 16x4 Pixel Infrared Temperature Sensor](https://littlebirdelectronics.com.au/products/tc01-non-contact-16x4-pixel-infrared-temperature-sensor) **Brand:** DFRobot **Price:** $223.55 **Stock:** In stock (Local: 0, Supplier: 5) **SKU:** DF-SEN0254 The TC01 is a non-contact infrared temperature sensor with a 16×4 pixel array, producing a 64-pixel thermal image. Housed in a waterproof, dustproof metal enclosure (IP65), it communicates via RS485 using the standard Modbus-RTU industrial protocol for easy integration with industrial controllers... [View product details](https://littlebirdelectronics.com.au/products/tc01-non-contact-16x4-pixel-infrared-temperature-sensor) | [Markdown version](https://littlebirdelectronics.com.au/products/tc01-non-contact-16x4-pixel-infrared-temperature-sensor.md) --- ## [DFRobot SEN0710 RS485 Industrial Turbidity Sensor (0-1000 NTU)](https://littlebirdelectronics.com.au/products/rs485-industrial-water-quality-turbidity-sensor-0-1000-ntu) **Brand:** DFRobot **Price:** $563.00 **Stock:** In stock (Local: 0, Supplier: 11) **SKU:** DF-SEN0710 Designed for industrial water-quality monitoring, this turbidity probe measures suspended particles using the 90° light scattering principle. The probe and housing are integrated into a compact IP68 unit, so it can be submerged for extended periods in applications such as drinking water treatment... [View product details](https://littlebirdelectronics.com.au/products/rs485-industrial-water-quality-turbidity-sensor-0-1000-ntu) | [Markdown version](https://littlebirdelectronics.com.au/products/rs485-industrial-water-quality-turbidity-sensor-0-1000-ntu.md) --- ## [DFRobot SEN0627 Small-Angle Ultrasonic Ranging Sensor 8m IP67](https://littlebirdelectronics.com.au/products/small-angle-ultrasonic-ranging-sensor-for-water-level-detection-25-800cm-ip67-15-fov) **Brand:** DFRobot **Price:** $291.05 **Stock:** In stock (Local: 0, Supplier: 23) **SKU:** DF-SEN0627 This compact ultrasonic ranging module is made for accurate long-range distance measurement in outdoor, environmental and industrial monitoring projects. It measures targets from 25 cm to 800 cm, making it useful for water level, liquid level, obstacle and container distance sensing.A narrow 15° ... [View product details](https://littlebirdelectronics.com.au/products/small-angle-ultrasonic-ranging-sensor-for-water-level-detection-25-800cm-ip67-15-fov) | [Markdown version](https://littlebirdelectronics.com.au/products/small-angle-ultrasonic-ranging-sensor-for-water-level-detection-25-800cm-ip67-15-fov.md) --- ## [Gravity: Analog Water Pressure Sensor](https://littlebirdelectronics.com.au/products/gravity-analog-water-pressure-sensor) **Brand:** DFRobot **Price:** $31.40 **Stock:** In stock (Local: 1, Supplier: 382) **SKU:** DF-SEN0257 The Gravity Analog Water Pressure Sensor measures water or gas pressure and outputs a linear 0.5–4.5 V analogue signal proportional to the applied pressure (0–1.6 MPa). Using the DFRobot Gravity 3-pin interface, it connects directly to Arduino and other 5 V microcontrollers for easy integration i... [View product details](https://littlebirdelectronics.com.au/products/gravity-analog-water-pressure-sensor) | [Markdown version](https://littlebirdelectronics.com.au/products/gravity-analog-water-pressure-sensor.md) --- ## [RS485 Temperature Humidity Sensor](https://littlebirdelectronics.com.au/products/rs485-temperature-humidity-sensor) **Brand:** DFRobot **Price:** $52.15 **Stock:** In stock (Local: 0, Supplier: 359) **SKU:** DF-SEN0438 This industrial-grade RS485 temperature and humidity sensor features a high-precision digital transducer in a rugged aluminium alloy housing. With a wide measurement range and Modbus RTU communication, it's designed for integration into building automation, HVAC systems, and environmental monitor... [View product details](https://littlebirdelectronics.com.au/products/rs485-temperature-humidity-sensor) | [Markdown version](https://littlebirdelectronics.com.au/products/rs485-temperature-humidity-sensor.md) --- ## [DFRobot RS485 Modbus IP68 Water Quality pH Sensor](https://littlebirdelectronics.com.au/products/rs485-modbus-water-quality-ph-sensor-ip68) **Brand:** DFRobot **Price:** $317.15 **Stock:** In stock (Local: 0, Supplier: 19) **SKU:** DF-SEN0708 This industrial-grade water quality sensor is designed for continuous pH monitoring in demanding environments. Its integrated probe and housing provide a robust, streamlined setup for measuring pH in non-corrosive, weakly acidic and weakly alkaline water.The sensor communicates over RS485 using t... [View product details](https://littlebirdelectronics.com.au/products/rs485-modbus-water-quality-ph-sensor-ip68) | [Markdown version](https://littlebirdelectronics.com.au/products/rs485-modbus-water-quality-ph-sensor-ip68.md) --- ## [DFRobot Industrial RS485 ORP Sensor - IP68 ModBus-RTU](https://littlebirdelectronics.com.au/products/industrial-grade-rs485-water-quality-orp-sensor-modbus-rtu-ip68) **Brand:** DFRobot **Price:** $440.10 **Stock:** In stock (Local: 0, Supplier: 35) **SKU:** DF-SEN0709 This industrial-grade ORP (Oxidation-Reduction Potential) sensor is built for reliable water quality monitoring in demanding environments. Its integrated probe and housing measure ORP from -1999 to 1999mV, with RS485 communication for connection into monitoring networks.The sensor supports the st... [View product details](https://littlebirdelectronics.com.au/products/industrial-grade-rs485-water-quality-orp-sensor-modbus-rtu-ip68) | [Markdown version](https://littlebirdelectronics.com.au/products/industrial-grade-rs485-water-quality-orp-sensor-modbus-rtu-ip68.md) --- ## [DFRobot RS485 Industrial Water EC Sensor K=1](https://littlebirdelectronics.com.au/products/rs485-industrial-water-electrical-conductivity-ec-sensor-k-1-multi-parameter-pre-calibrated) **Brand:** DFRobot **Price:** $366.35 **Stock:** In stock (Local: 0, Supplier: 14) **SKU:** DF-SEN0706 This industrial-grade water electrical conductivity sensor combines the probe and housing into a single integrated unit for straightforward installation and reliable measurement. It uses an electrode constant of K=1 and can output conductivity, salinity, TDS and temperature data for multi-paramet... [View product details](https://littlebirdelectronics.com.au/products/rs485-industrial-water-electrical-conductivity-ec-sensor-k-1-multi-parameter-pre-calibrated) | [Markdown version](https://littlebirdelectronics.com.au/products/rs485-industrial-water-electrical-conductivity-ec-sensor-k-1-multi-parameter-pre-calibrated.md) --- ## [DFRobot SEN0713 RS485 Chlorophyll Water Quality Sensor](https://littlebirdelectronics.com.au/products/factory-calibrated-rs485-water-quality-chlorophyll-sensor-for-real-time-algae-monitoring) **Brand:** DFRobot **Price:** $1,352.25 **Stock:** In stock (Local: 0, Supplier: 13) **SKU:** DF-SEN0713 This industrial-grade chlorophyll sensor measures chlorophyll concentration in water using the fluorescence principle, making it useful for algae monitoring in rivers, lakes, ponds, aquaculture systems and field research sites.The probe and housing are integrated into a single waterproof unit, wi... [View product details](https://littlebirdelectronics.com.au/products/factory-calibrated-rs485-water-quality-chlorophyll-sensor-for-real-time-algae-monitoring) | [Markdown version](https://littlebirdelectronics.com.au/products/factory-calibrated-rs485-water-quality-chlorophyll-sensor-for-real-time-algae-monitoring.md) --- ## [RS485 4-in-1 Soil Moisture, Temperature, pH & EC Sensor for Smart Agriculture (IP68, 5-30V)](https://littlebirdelectronics.com.au/products/rs485-4-in-1-soil-moisture-temperature-ph-amp-ec-sensor-for-smart-agriculture-ip68-5-30v) **Brand:** DFRobot **Price:** $125.65 **Stock:** In stock (Local: 0, Supplier: 414) **SKU:** DF-SEN0604 ##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 transmission using the reliable MODBUS-RTU protocol, this sensor delivers rapid, accurate... [View product details](https://littlebirdelectronics.com.au/products/rs485-4-in-1-soil-moisture-temperature-ph-amp-ec-sensor-for-smart-agriculture-ip68-5-30v) | [Markdown version](https://littlebirdelectronics.com.au/products/rs485-4-in-1-soil-moisture-temperature-ph-amp-ec-sensor-for-smart-agriculture-ip68-5-30v.md) --- ## [Gravity: Analog pH Sensor/Meter Kit V2](https://littlebirdelectronics.com.au/products/gravity-analog-ph-sensor-meter-kit-v2) **Brand:** DFRobot **Price:** $72.85 **Stock:** In stock (Local: 0, Supplier: 707) **SKU:** DF-SEN0161-V2 The Gravity Analog pH Sensor/Meter Kit V2 is designed to measure the pH of liquids, indicating acidity or alkalinity on a scale of 0–14. It's commonly used in aquaponics, aquaculture, hydroponics, and environmental water testing. The kit includes a laboratory-grade pH probe, a signal conversion b... [View product details](https://littlebirdelectronics.com.au/products/gravity-analog-ph-sensor-meter-kit-v2) | [Markdown version](https://littlebirdelectronics.com.au/products/gravity-analog-ph-sensor-meter-kit-v2.md) --- ## [MODBUS-RTU RS485 Soil EC and pH Monitoring Sensor (IP68, 5-30V)](https://littlebirdelectronics.com.au/products/modbus-rtu-rs485-soil-ec-and-ph-monitoring-sensor-ip68-5-30v) **Brand:** DFRobot **Price:** $101.95 **Stock:** In stock (Local: 0, Supplier: 47) **SKU:** DF-SEN0603 ##Introduction The soil electrical conductivity (EC) and pH sensor operate within a wide voltage range of 5-30V, transmit data via RS485 using the MODBUS-RTU protocol, and deliver quick, reliable responses with minimal interference from environmental factors. The sensor is designed for easy integ... [View product details](https://littlebirdelectronics.com.au/products/modbus-rtu-rs485-soil-ec-and-ph-monitoring-sensor-ip68-5-30v) | [Markdown version](https://littlebirdelectronics.com.au/products/modbus-rtu-rs485-soil-ec-and-ph-monitoring-sensor-ip68-5-30v.md) --- ## [RS485 MODBUS-RTU Soil NPK Measure Sensor for for Efficient Agricultural (IP68, 5-30V)](https://littlebirdelectronics.com.au/products/rs485-modbus-rtu-soil-npk-measure-sensor-for-for-efficient-agricultural-ip68-5-30v) **Brand:** DFRobot **Price:** $101.95 **Stock:** In stock (Local: 0, Supplier: 78) **SKU:** DF-SEN0605 ##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 growth. With a broad voltage power supply range of 5-30V and data output throug... [View product details](https://littlebirdelectronics.com.au/products/rs485-modbus-rtu-soil-npk-measure-sensor-for-for-efficient-agricultural-ip68-5-30v) | [Markdown version](https://littlebirdelectronics.com.au/products/rs485-modbus-rtu-soil-npk-measure-sensor-for-for-efficient-agricultural-ip68-5-30v.md) --- ## [Gravity Flexible Non-Contact Capacitive Liquid Level Sensor](https://littlebirdelectronics.com.au/products/gravity-non-contact-capacitive-flexible-liquid-level-sensor) **Brand:** DFRobot **Price:** $24.35 **Stock:** In stock (Local: 0, Supplier: 306) **SKU:** DF-SEN0508 This flexible capacitive liquid level sensor detects liquid through the wall of a non-conductive container, so it does not need to touch the liquid itself. It is designed for containers with a wall thickness of less than 5 mm, making it handy for sealed tanks, pipes and other setups where a conta... [View product details](https://littlebirdelectronics.com.au/products/gravity-non-contact-capacitive-flexible-liquid-level-sensor) | [Markdown version](https://littlebirdelectronics.com.au/products/gravity-non-contact-capacitive-flexible-liquid-level-sensor.md) --- ## [DFRobot RS485 Fluorescence Dissolved Oxygen Sensor - Freshwater](https://littlebirdelectronics.com.au/products/rs485-fluorescence-dissolved-oxygen-sensor-freshwater) **Brand:** DFRobot **Price:** $489.25 **Stock:** In stock (Local: 0, Supplier: 14) **SKU:** DF-SEN0680 This optical dissolved oxygen probe is designed for measuring DO levels in freshwater environments such as aquaculture tanks, rivers, lakes, reservoirs and treatment facilities. It uses fluorescence quenching, measuring the phase shift of light caused by oxygen molecules, rather than relying on a... [View product details](https://littlebirdelectronics.com.au/products/rs485-fluorescence-dissolved-oxygen-sensor-freshwater) | [Markdown version](https://littlebirdelectronics.com.au/products/rs485-fluorescence-dissolved-oxygen-sensor-freshwater.md) --- ## [DFRobot RS485 Industrial Residual Chlorine Sensor](https://littlebirdelectronics.com.au/products/rs485-industrial-water-quality-residual-chlorine-sensor) **Brand:** DFRobot **Price:** $685.95 **Stock:** In stock (Local: 0, Supplier: 37) **SKU:** DF-SEN0712 This industrial-grade residual chlorine sensor is designed for precise, reliable water quality monitoring in demanding environments. Its integrated probe and housing measure residual chlorine concentrations, specifically hypochlorous acid and hypochlorite ions, over a 0 to 10 mg/L range.The senso... [View product details](https://littlebirdelectronics.com.au/products/rs485-industrial-water-quality-residual-chlorine-sensor) | [Markdown version](https://littlebirdelectronics.com.au/products/rs485-industrial-water-quality-residual-chlorine-sensor.md) --- ## [DFRobot Gravity Industrial Analog EC Meter Kit (K=1, IP68)](https://littlebirdelectronics.com.au/products/gravity-industrial-analog-ec-electrical-conductivity-meter-kit-for-water-quality-monitoring-k-1-ip68) **Brand:** DFRobot **Price:** $489.25 **Stock:** In stock (Local: 0, Supplier: 43) **SKU:** DF-SEN0451 This industrial Gravity kit measures electrical conductivity in aqueous solutions, helping you evaluate water quality by tracking dissolved content or salinity. It is suited to hydroponics, aquaculture and environmental water monitoring where long-running measurements are needed.The pro probe is ... [View product details](https://littlebirdelectronics.com.au/products/gravity-industrial-analog-ec-electrical-conductivity-meter-kit-for-water-quality-monitoring-k-1-ip68) | [Markdown version](https://littlebirdelectronics.com.au/products/gravity-industrial-analog-ec-electrical-conductivity-meter-kit-for-water-quality-monitoring-k-1-ip68.md) --- ## Pagination Page 2 of 3 — showing products 21–40 of 47. Append `&page={n}` to this URL to fetch any page from 1 to 3. - [← Previous page (1)](https://littlebirdelectronics.com.au/products.md?page=1&q=waterproof+temperature+probe+DS18B20) - [Next page (3) →](https://littlebirdelectronics.com.au/products.md?page=3&q=waterproof+temperature+probe+DS18B20) - [First page](https://littlebirdelectronics.com.au/products.md?page=1&q=waterproof+temperature+probe+DS18B20) - [Last page (3)](https://littlebirdelectronics.com.au/products.md?page=3&q=waterproof+temperature+probe+DS18B20) --- ## Contact Us **Little Bird Electronics Pty Ltd** ABN: 15 634 521 449 - **Phone:** 1300 240 817 - **Fax:** (02) 8319 2017 - **Email:** team@littlebirdelectronics.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@littlebirdelectronics.com.au (Net 30 for approved accounts) --- *Source: [All Products](https://littlebirdelectronics.com.au/products)*